what episode of arrow does the flash start
Flash vs. Arrow The first indication of potential crossover events in the Arrowverse occurred on The CW during the 2013–14 television season, when Barry Allen was introduced in the eighth episode of Arrow's second season ahead of the debut of The Flash.[1] In July 2014, it was announced that the eighth episodes of the third season of Arrow and the first season of The Flash would be a two-hour crossover event.[9] The crossover was originally planned as the seventh episodes of each series, but was pushed back due to the large amount of work needed to accomplish it.[10] In particular, the schedule coordination of trying to "jam another episode into the 23-episode schedule for each of [the] shows."[11] Marc Guggenheim, creator and executive producer on Arrow, explained that there was "no financially responsible" way of executing the crossover, with budgets being blown, long hours and the actors having to film scenes from both series on the same day.[11]
List of The Flash characters The Flash is an American television series developed by writer-producers Greg Berlanti, Andrew Kreisberg and Geoff Johns, and is based on the DC Comics character, the Flash. The series premiered on The CW television network in the United States on October 7, 2014. The series is a spin-off from Arrow, a show in the same universe. The first season follows police forensic investigator Barry Allen (Grant Gustin), who develops super-speed after he is struck by lightning. In his attempt to learn about his powers and how to use them for good, he is assisted by S.T.A.R. Labs' Dr. Caitlin Snow (Danielle Panabaker), Cisco Ramon (Carlos Valdes), and Dr. Harrison Wells (Tom Cavanagh). Barry tries to solve the murder of his mother (Michelle Harrison) by a superhuman attacker (Matt Letscher). The murder investigation unjustly imprisoned his father (John Wesley Shipp), leaving detective Joe West (Jesse L. Martin), father of his best friend, Iris (Candice Patton), to take in the young Barry. The memory of his mother's murder and his father's framing later motivates Barry to put his personal needs aside and use his powers to fight against those who hurt the innocent, thus, shaping him into the Flash.