When Adama calls for volunteers for a rescue mission for Hera Agathon, Tigh volunteers immediately alongside Ellen. (Daybreak, Part 1) During the Battle of The Colony, Tigh coordinates the battle with Adama in CIC. When a fire breaks out near Anders, he goes up with Tyrol to put it out and stays on the balcony afterwards. During the attempt to get Cavil to stop all of this and release Hera who he has taken hostage in CIC, Tigh offers him resurrection technology if he agrees to let Hera go and stop chasing humanity. After he agrees, the Five combine together to send the plans for resurrection to The Colony and Tigh tells a nervous Tory they forgive her sins when she gets worried about everyone seeing everyone else's memories. Tigh is shocked to discover Tory murdered Cally and can only watch as Tyrol kills Tory in revenge, sparking a firefight that results in the demise of the attacking Cylon forces led by Cavil. After "Galactica" jumps away, Tigh resumes his duties as XO and reports that "Galactica" suffered critical structural failures, "broke her back" and can't jump anymore. After landing on their new home planet which they name Earth, Tigh and Ellen say goodbye to Tyrol who plans to go off and live as a hermit. Tigh forgives him for killing Tory, saying he'd have done the same thing if someone had done that to Ellen. Tigh and Ellen rekindle their relationship and go off to spend the rest of their lives together. (Daybreak, Part 2)