There Is A Tide... (episode)
After capturing the USS Discovery, Osyraa seeks a meeting with Admiral Vance while Burnham and the crew must overcome unimaginable odds as they attempt to regain command of their ship.

Summary

Teaser 
The , controlled by Osyraa and the Emerald Chain, is chased toward Federation Headquarters by the Viridian. Osyraa directs the Viridian to reduce firepower on the Discovery to six percent to avoid significant damage to the Starfleet vessel. At Headquarters, Lieutenant Audrey Willa reports to Admiral Charles Vance that a communications jam is preventing contact with Discovery and that the Viridian jumped through the mycelial network with Discovery. Both ships also show residue consistent with being near the Verubin Nebula. Discovery, apparently under attack, is just a few minutes away from entering the shielded area, but Vance is hesitant to allow it entry.

On Discovery, Kanak reports that the ship's bridge officers have been confined to the ready room and the rest of the crew placed in the brig. Most of Discoverys computer systems have also been converted to Chain software, but Kanak reports having difficulty deleting a particular section of code that she says appears to be "ancient Earth entertainment." The program is using little memory, so Osyraa tells Kanak to ignore it. She also orders the Viridian to speed up so as to appear to gain on Discovery. From a station on the side of the bridge, a display shows a pair of eyes watching the proceedings.

In the ready room, regulators attack Gen Rhys when he comments on the ongoing attack. Ensign Sylvia Tilly protests and asks them to release the rest of the crew, saying they need only her as acting captain for leverage. Zareh enters with Ryn and tells Tilly she should have killed him on The Colony instead of "leaving the job to the ice," raising his left hand, which is injured and black. He mocks her leadership, noting it took very little time to hijack Discovery. Zareh tells the regulators that Osyraa wants the hostages, including Ryn, left untouched, and leaves.

Meanwhile, Michael Burnham and Cleveland Booker pilot Booker's vessel through a transwarp tunnel, the same one they suspect Osyraa used to arrive at the Verubin Nebula so quickly. However, the passage is filled with debris and even Booker's morphological ship cannot dodge all of it. Burnham says they are ninety seconds from Federation headquarters and warns of the remains of a  ship blocking much of the tunnel.

At headquarters, Discovery has entered the distortion zone's gravity well; if they do not open the shields, it will be crushed. Vance orders the shields to open just enough for Discovery to enter and security to stand by. Will reports that Booker's ship has exited subspace, confusing Vance. Their communications are fried, preventing Burnham from warning Vance not to allow Discovery in. Booker notes that Osyraa did something similar on Benthos IV, where she got behind the shields and then blew up the presidential palace. With just seconds remaining, Booker's ship flies at high speed into its shuttlebay, crashing in a fiery landing.

Act One 
With the Viridian holding position outside the Federation Headquarter's distortion field, Osyraa is angry that Kanak did not fire upon Booker's ship before it crashed into the shuttlebay. Zareh reports that fire suppression protocols are blocking sensors, so they are unable to tell how many people were aboard, but that his regulators will handle whoever arrived. Osyraa orders him to keep any intruders alive.

Arriving in engineering, she greets Invigilator Aurellio, a wheelchair-bound Human scientist working for the Emerald Chain. He expresses awe that the spore drive is 930-year-old technology, saying it must have been a "golden age of science." He reports that it is clear Paul Stamets is a conduit that allows Discovery to navigate the mycelial network but that he will have to perform a bioanalysis to learn more. He asks if engineering is a safe place to work, and Osyraa assures him she would never allow him to be harmed. Aurellio says she nonetheless seems worried. She tells him she is in "hostile territory, about to take the gamble of my life." Aurellio tells Osyraa she would improve the galaxy by spreading the spore drive technology and freeing ships from having to use dilithium. She asks him to work fast and puts on an Andorian opera before leaving.

In the shuttlebay, DOT-23 drones have nearly extinguished the fires on and around Booker's damaged ship. Booker reports that Grudge is "safe and secure" and gives Burnham another dose of radiation medication which causes lesions on her face to heal. Burnham says their first goal should be to find Stamets, as Osyraa cannot jump the ship without him. However, Booker tells her she will have to act alone; he has just one device that can conceal her life signs from sensors. Burnham suggests that they still stick together, but Booker disagrees, arguing that they will expect to find at least one pilot and that Burnham is more familiar with Discovery and thus better able to move about without being detected. "Is this the wrong moment to tell you I love you, for the first time?" Burnham asks. It's "not quite the first," Booker says, as Burnham talks in her sleep. The two giggle before Booker confesses his love as well and they kiss. Burnham departs. Outside the ship, Zareh detects Booker's life sign and orders him taken alive.

At headquarters, an officer reports that Discovery is jamming transporters while Willa notes that the Viridian is simply waiting outside the shield perimeter. Vance wonders aloud by Osyraa would only bring one ship when she knows part of the fleet is at Kaminar. Realizing that Osyraa has hijacked Discovery, Vance orders all Starfleet vessels to go weapons hot and prepare to fire on the ship.

Zareh escorts Booker to the ready room with the bridge crew and Ryn and punches him in the stomach before leaving. Tilly looks at Booker, who silently indicates with his eyes that Burnham is also aboard somewhere.

At the memorial wall in a corridor, Burnham attacks a regulator who was trying to pry a badge off the wall. He manages to stab her in her left leg, but Burnham subsequently suffocates him with her legs. She pulls out the knife and uses the regulator's combadge to attempt to beam away but is blocked by the jamming field. Her leg bloody, Burnham hobbles away.

The  and other vessels take offensive stations around Discovery and Vance warns the fleet near Kaminar to brace for retaliation. Osyraa hails Vance via hologram. He directs her to surrender or be fired upon, but Osyraa apologizes for arriving under "pretenses" and asks to talk. She releases most of the ship's crew on shuttles as a good faith gesture but holds onto the bridge crew for leverage.

In a Jefferies tube, Burnham uses a device to cauterize her stab wound. She hears over the combadge that Osyraa has left the ship for Federation Headquarters. She then issues a distress call to Gabrielle Burnham on Ni'Var, reporting on the situation and asking her mother for help. She then overhears that Aurellio is with Stamets in engineering.

Act Two 
Vance and Willa welcome Osyraa and several regulator bodyguards aboard Federation headquarters. Vance says that the Federation president has authorized him to negotiate for the release of Discovery and its crew. Vance notes that they will respond with force should the Emerald Chain initiate hostilities and escorts Osyraa to a conference room.

In the conference room, Gen Rhys and R.A. Bryce are covertly tapping out communications in Morse code. One of the guards notices and orders them to stop, but they do not. Joann Owosekun angrily tells them to stop, prompting Keyla Detmer to chastise her in turn. The ensuing commotion distracts the guards and the crew attacks and neutralizes them. Booker asks what the tapping was, and they tell him all officers learn Morse code in their first year at Starfleet Academy. Rhys reveals he merely told Bryce via code to keep tapping, amusing Booker. Tilly is locked out of the computer, but Ryn offers to hack the system. Booker reveals that Hugh Culber and Saru remained behind in the nebula. Lieutenant Ina notes that they have little time left before succumbing to the radiation, but Booker informs them that Adira Tal took extra medication down to them, buying some time. Tilly says they will jump back to rescue them after retaking the ship. She orders Bryce to monitor communications, Owosekun, Detmer, and Rhys to open a door leading to a maintenance shaft, and the rest to barricade the turbolift doors.

Osyraa asks Vance why the holographic Dr.  has joined their negotiations. He tells her they employ biometric lie detectors during such negotiations. Osyraa says she does not intend to lie, which Eli confirms. Vance asks to speak to the officers remaining aboard Discovery, but Osyraa instead turns to Eli and states that they are unharmed except from minor injuries, which Eli confirms. Osyraa brags that it was easy to take Discovery in part because Saru was not present and asks if he was sent to Kaminar. Vance ignores her question and asks what she wants. Osyraa says she wants the Emerald Chain to unite with the Federation, surprising Vance. She says the Chain's dilithium is running out but that her scientific resources could replicate the spore drive technology. Vance asks why she needs the Federation as she has already taken control of Discovery, and Osyraa says that despite its failures since The Burn, the Federation still represents hope to many while the Chain does not.

Kanak has discovered the regulator attacked by Burnham and Zareh surmises someone else using a life sign concealment device must be aboard. Zareh traces the regulator's combadge to Burnham's location in the Jefferies tube.

In engineering, Stamets has been handcuffed to a railing and Aurellio removes the neural locks that the Chain used to control him and force Discovery to jump. Awakening, Stamets notes they are listening to Andorian opera. Aurellio explains that Andorians make the best opera singers because their antennae increase resonance. Stamets remarks he would like to hear the performance in person someday, and Aurellio tells Stamets that Osyraa would surely want a scientist of his talents at her Science Institute. Stamets asks if Aurellio's children like opera, noting that he has three silver piercings behind his right ear, an Orion symbol to bless the arrival of a new child. Trying to connect with Aurellio, Stamets says he has a child himself, apparently referring to Adira. Aurellio tries to turn the discussion to the spore drive, but Stamets continues to talk about Culber, who he notes is in danger inside the Verubin Nebula. Aurellio speculates that the  DNA in Stamets is how he controls the spore drive, but Stamets tells him the species has gone extinct and cannot be replicated. He will have to be killed to extract it, but Aurellio assures him they instead will grow the tardigrade cells.

Kanak and other regulators are approaching Burnham's position in the Jefferies tube. Ryn has gained access to ship's systems and Tilly tells him to scramble communications to help Burnham. Meanwhile, Burnham ties herself to a railing inside the tube. Just as Kanak grabs her, Burnham uses a phaser to destroy a sensor, fooling the computer into thinking there is a fire. The ship's fire suppression system opens the tube to space to remove the oxygen. Kanak, holding onto Burnham's boots, is eventually blown into space. Burnham's strap fails, but the exterior vents close before she is ejected. On the bridge, Zareh watches the dead Kanak floating in space. A barefoot Burnham emerges from the Jefferies tube and tells Zareh over comms that he will need more regulators, to the relief of Booker and the crew. Burnham ditches the combadge and runs off.

Act Three 
Osyraa samples an apple slice from a tray of foods. She remarks that it does not quite taste like real apple, and Vance remarks he has never had a real one. Vance tells her the apple, like all their food, is "made of our shit, you know," via replicators, as Osyraa spits out the food. It's "pretty good for shit," Vance says, "and we don't have to commit atrocities for it." Vance presses Osyraa to make her point. She tells him that if they are to join forces, the Federation must send a message that the Chain's culture is valid and ethical "by acknowledging that capitalism is already happening within the Federation." She notes it has been eighty-seven years since anyone from the Federation visited Deep Space 253, a distant outpost. However, Deep Space 253 has been trading with a Chain mercantile for nearly a century, and that trade should be sanctioned, Osyraa says. The Chain should also be allowed to set up an embassy on the station, she says. Vance protests, arguing that the mercantiles traffic in goods used for enslavement, and some even have open slave markets. Osyraa says she has submitted a charter amendment to the Chain's congress to outlaw slavery. It has enough support to pass, though she had to expend a great deal of political capital. Vance tells Osyraa they would also require the Chain to release  and other pre-warp planets under its influence. She says he is asking powerful people to give up significant income, but Vance retorts that she could explain it to them by hijacking their ships and breaking through their shields. Willa and a regulator arrive to deliver the news that the bodies of several regulators have been detected in space around Discovery. Osyraa, seeking to advance negotiations, provides Vance with a copy of a proposed armistice. Among other things, it would require the Chain to follow the Prime Directive moving forward. Osyraa commits to a fifteen-year walk-back of control over Kwejian and the other worlds, arguing that an immediate pullout would cause chaos. Vance sits down to read the full document.

In the ready room, Ryn says that he cannot block their life signs but can scramble them so that sensors show all life signs that have been on the ship in recent months, making it appear like there are thousands of people aboard and the bridge crew to move freely. Ryn and Booker volunteer to remain behind to fight off regulators that come looking for them. Booker tells Tilly that she represents Burnham's best chance. Ryn scrambles the sensors, confusing Zareh, as the rest of the crew escape.

In engineering, Aurellio assures Stamets that the regulators are well-trained and will sort whatever the problem is. Stamets notes Osyraa hijacked the ship and has taken hostages, including himself, but Aurellio says she is negotiating to bring spore drive technology to the entire galaxy. He tells Stamets that while he may not like her methods, she is "more than you're making her out to be." Aurellio explains that his genetic defect would have left him dead long ago but for the intervention of Osyraa when he was ten years old. Stamets says he has seen evidence of the science she supports, such as the pesticide on Kwejian. Aurellio cites the pesticide as a triumph, but Stamets reveals to him she provided it to the Kwejian in exchange for hunting trance worms almost to extinction while threatening their population, concerning Aurellio. Stamets also reveals Burnham barely escaped one of Osyraa's labor camps, further shocking Aurellio. Just then, Burnham arrives and stuns several guards and Aurellio and frees Stamets from his bindings.

Meanwhile, regulators finally break into the ready room and begin exchanging fire with Booker and Ryn.

Pulling on a new pair of boots, Burnham says she must get Stamets off the ship, but he protests while reloading a new canister of spores into the drive so they can jump back to the nebula to save Culber and Saru. Burnham reveals Adira is also in the nebula, causing Stamets to become even more frantic. Unable to convince him, Burnham resorts to using a Vulcan nerve pinch to incapacitate him.

Act Four 
As Vance reads the armistice, Osyraa asks who Eli is modeled after. Vance tells her his image was computer-generated. Vance finishes reading and calls the armistice "very impressive," noting it made many concessions. But he has one further question: Who would represent the Chain to the Federation? Osyraa agrees that her reputation precludes her from being the diplomatic representative and that she would choose someone appropriate, perhaps a well-respected scientist. She insists the person would be free from her influence, but Eli says it was a lie. Vance says that for the armistice to work, Osyraa would have to be tried for her crimes, shocking her. She tells him he is stuck in the past when she has offered a map to the future. "The past is the only light with which we can see the future," Vance responds. Unable to agree on this final point, Osyraa walks away angrily.

Osyraa arrives back on Discoverys bridge, where Zareh, Aurellio, Ryn, and Booker are present. She chastises Zareh for losing the hostages, especially Stamets, though he protests that they must still be on board. Her harsh language and threats of violence unnerve Aurellio. He tells her there is no need for violence but she retorts that it is how progress is made, and Aurellio decides to stay. Osyraa tells Ryn to fix the sensors, but he refuses, saying he is no longer afraid of her. She puts her gun to his head, but Booker holds her off by saying he can show her to the dilithium planet. Osyraa guesses that it is in the Verubin Nebula, along with Saru, though Booker tells her the nebula is massive and dangerous and he can show her how to get there safely. Aurellio nods that she should accept the deal, but Osyraa quietly turns back and fires on Ryn at point blank range, disintegrating him. Booker is shocked, as is Aurellio, by the bloodshed. She tells him to produce a truth serum so Booker doesn't lie about the planet's location and orders the Viridian to start firing on Headquarters' shields so they can depart.

Elsewhere, Burnham places Stamets in an emergency escape field and activates a homing beacon; she plans to eject him into space, where the Federation can tractor him to safety. Awakening, Stamets protests, arguing that Culber and Adira will die painfully if they do not return immediately. But Burnham says that Osyraa would use him to destroy what remains of the Federation. Leaving a phaser on overload near a window, Burnham exits the room. Stamets angrily shouts that they followed Burnham to the future so she would not be alone. The phaser explodes, rupturing the hull and pulling Stamets inside the escape field into space, where he is tractored to safety by the Federation. Burnham watches tearfully but regains her composure. Zareh arrives and holds her at gunpoint, telling her she will be sorry for saving Stamets.

At the armory, Tilly and the crew attacks the guards and arm themselves. Tilly orders them to make it to the bridge no matter what, meaning fallen comrades must be left behind. They are surprised when three DOT-23 drones emerge. One displays an old Earth film, and Tilly realizes they are controlled by the Sphere data. Able to speak with Zora's voice, the drones confirm her suspicions and offer to help take back the ship.

Memorable quotes 
"Is this the wrong moment to tell you that I love you for the first time?"
"Not quite the first. You talk in your sleep."
- Burnham and Booker

"Osyraa… she's not on the Viridian, she's on Discovery. And we just let her in the front door."
- Vance, realizing that the Discovery has been compromised

"Mom, they have taken over all of our systems. The way things are going, I might not see you again until another distant future. … Maybe dad will be there. I love you."
- Burnham, sending a sub-space message to her mother

"You already have Discovery under your control. Why bring us into it at all?"
"Because the Federation, despite its failures since the Burn, is still a symbol of hope. The Chain, despite our efforts, and our advances, has never experienced such privilege. If we combine the best of what we are…"
"You really think this could work?"
"You're a chain of planets. We are a federation of mercantile exchanges. We need to focus on doing what is for the good of our people. At the end of the day, they are what this is all about."
- Vance and Osyraa

"It doesn't quite taste like the real thing, does it?"
"I've never eaten a real apple."
"Well how sad. Apples are a thing of beauty. You want to talk about oppression, you should start in your own mess hall."
"It's made of our shit, you know. That's the base material that we use in our replicators. We deconstruct it to the atomic level, and then reform the atoms. It's pretty good for shit, and we don't have to commit atrocities for it."
- Osyraa and Vance

"MY WHOLE LIFE IS IN THAT NEBULA!!!"
- Stamets, to Burnham

"I'm not afraid of you anymore. I've seen real bravery, real strength and loyalty. And love. You're nothing compared to that. All you have is fear, and no one is feared forever."
- Ryn, to Osyraa

"We came to the future for you! We followed you! HUGH FOLLOWED YOU! We gave up everything so you wouldn't have to be here alone! How can you do this?!"
"I'm sorry…"
- Stamets and Burnham, before Burnham ejects him from Discovery

"I'm at your service, captain. Shall we take back the ship?"
- The Sphere Data, to Tilly

Background information

Title 
 The title of this episode is taken from a line of William Shakespeare's play, . The relevant passage reads:
There is a tide in the affairs of men
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries.
On such a full sea are we now afloat,
And we must take the current when it serves,
Or lose our ventures.

Cast and characters 
 Rachael Ancheril (D. Nhan) and Wilson Cruz (Hugh Culber) are not credited and do not appear in this episode. Doug Jones (Saru) appears only in the recap at the start of the episode, and does appear in the credits. 
 Kenneth Mitchell portrays Aurellio in this episode. Mitchell previously portrayed  in Season 1 of , and Kol-Sha, the father of Kol, in  and Tenavik, the son of Voq and L'Rell in . He also provided voices for the  episode .

Music and sound 
 The Andorian opera/aria heard in the episode was written by Jeff Russo and was sung by singer Ayana Haviv.

Continuity 
 This episode has the longest stardate to date in franchise history with SD 29141429.1. This stardate appeared in the proposal for a galactic armistice between the United Federation of Planets and Emerald Chain.

Reception

Production history 
 : The episode's original title, "The Good of the People", was publicly revealed.  This was later changed.

Links and references

Starring 
 Sonequa Martin-Green as Michael Burnham
 Anthony Rapp as Paul Stamets
 Mary Wiseman as Sylvia Tilly
And
 David Ajala as Cleveland "Book" Booker

Guest starring 
 Oded Fehr as Charles Vance
 Noah Averbach-Katz as Ryn
 Janet Kidder as Osyraa
 Kenneth Mitchell as Aurellio
 Annabelle Wallis as Zora (voice)
 Jake Weber as Zareh

Co-starring 
 Emily Coutts as Lt. Keyla Detmer
 Patrick Kwok-Choon as Lt. Gen Rhys
 Oyin Oladejo as Lt. Joann Owosekun
 Ronnie Rowe Jr. as Lt. R.A. Bryce
 Brendan Beiser as 
 Lisa Berry as Kanak
 Avaah Blackwell as Lt. Ina
 Nicole Dickinson as Strong Regulator
 Vanessa Jackson as Lt. Audrey Willa
 Lamont James as Regulator Guard #1
 Dorren Lee as Lt. Teemo
 Alexander Mandra as Avryz
 Fabio Tassone as Book's Ship Computer
 Roy Samuelson as Emerald Chain Computer

Uncredited co-star 
 Kirpa Budwal as Andorian Regulator

Stunt double 
 Yvette McKoy as stunt double for Lisa Berry

Stand-in 
 Stacy-Ann Buchanan as stand-in for Sonequa Martin-Green

References 
3089; 3102; 3204; admiral; Alpha Quadrant; Altarian spider; Andorian; Andorian opera; Andorian soprano; armistice; apple; Aurellio's children; Aurellio's parents; Aurellio's partner; Benthos IV; Beta Quadrant; Booker's ship; ; ; ; capitalism; Class C shuttlecraft (unnamed); commander;  (unnamed); ; courier network; Crossfield-class decks; ; Deep Space 253; dilithium; DNA; DOT-23; Earth;  (unnamed); embassy; Emerald Chain; Emerald Chain Congress; ensign; Federation; Federation Headquarters; Federation president; French language; Golden Age of Science; hologram; hoverchair; Human; Invigilator; Jefferies tube; Kaminar; Kaminar fleet;  (planet); Kwejian (species); lieutenant; lieutenant commander; minister; Morse code; mycelial field; NCC; Orion; palace; photon torpedo; president; Prime Directive; regulator; replicator; Saru; shit; ; Starfleet; Starfleet uniform (32nd century); Starfleet uniform (late 2230s-2250s); street; ; ; Theskian Exchange; transport jammer; tricom badge; Verubin Nebula; Viridian; ; worker bee

Star Map References 
Ajilon; Archanis; Beta Penthe; Brestant; Cardassia Prime; Cardassian Zone; Ganalda; Gorath; Khitomer; Klingon Zone; Morska; ; Qo'noS; Ramatis; Rura Penthe

External links 
 
 
 

DIS episodes