when does the flash show up in supergirl
Supergirl (TV series) On February 3, 2016, it was announced that Grant Gustin, who appears as Barry Allen / Flash on The Flash, would appear in the eighteenth episode of the first season, "Worlds Finest".[113] While no plot details on the episodes were released at the time, Ross A. Lincoln of Deadline.com noted that "the in-universe reason" for the crossover was due to Barry's ability to travel to various dimensions, thus implying that Supergirl exists on an alternate Earth to the Arrowverse in a multiverse.[114] The Flash episode "Welcome to Earth-2" confirmed this, showing an image of Benoist as Supergirl during a sequence where characters travel through that multiverse.[115] The earth that the series inhabits is Earth-38 in the Arrowverse multiverse,[116] and has been informally referred to as "Earth-CBS" by Marc Guggenheim, one of the creators of Arrow.[117]
List of Supergirl episodes The fourteenth episode is set to air on April 16, 2018, to accommodate the airing of Legends of Tomorrow's third season in the same timeslot until April 9.[6]
Marcus Álvarez
The Flash (season 4) The fourth season began airing on October 10, 2017, and ran for 23 episodes on The CW until May 22, 2018.