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Legends of Yesterday

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"Run, Barry. Run."
Oliver Queen encouraging Barry Allen to go back in time in order to save themselves from Vandal Savage.

"Legends of Yesterday" is the eighth episode of the fourth season of Arrow and the seventy-seventh episode overall. The episode is the second of a two-part crossover with the eighth episode of the second season of The Flash. It serves to set up the upcoming series, DC's Legends of Tomorrow.


Oliver and Barry Allen take Kendra Saunders and Carter Hall to a remote location to keep them hidden from Vandal Savage while they figure out how to defeat him. Malcolm arranges a meeting between Vandal, Green Arrow and The Flash that doesn't go as planned. Meanwhile, Felicity, Thea, Diggle and Laurel work with Team Flash to come up with a weapon powerful enough to destroy Vandal Savage.[1]


Preparation ran from September 22 until September 30, 2015. Shooting ran from October 1 until October 15, 2015.[2]


  • Thea says, "A bunch of superheroes in a farm house. Feel like I've seen that in a movie before." This is a reference to Avengers: Age of Ultron, in which the Avengers hide out on Hawkeye's farm.
  • This episode marks the shortest appearance of Star City on Arrow, as the city only appeared during the final scene. Most of the episode takes place in Central City instead.
  • This is one of the only episodes of Arrow that doesn't feature the flashback storyline at all.
  • Despite this being an Arrow episode, the Flash lightning transition graphic is still used during the episode.
  • The title of this episode likely refers to the fact that the Flash time travelled back to the previous day after Vandal Savage destroyed Central City by unleashing a devastating energy blast from the Staff of Horus.


Promotional images



  1. Arrow #4.8 Description: “Legends of Yesterday” (Flash Crossover Part 2) - GreenArrowTV
  2. Marc Guggenheim (@mguggenheim) - Twitter

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