Invasion! (The Flash)


 * For episodes of the same name, see Invasion!

"Invasion!" is the eighth episode of the third season of The Flash, and the fifty-fourth episode overall. The episode is the second of a four-part crossover with the eight episode of the season two of Supergirl, eight episode of the fifth season of Arrow and seventh episode of DC's Legends of Tomorrow. It aired on November 29, 2016.

Synopsis
When aliens called the Dominators attack Central City, Barry speeds over to Star City to ask the Green Arrow for help in stopping them. Realizing the battle against the Dominators is bigger than they thought, they track down the Legends, and Barry and Cisco create a breach to bring back a secret weapon – Supergirl. Once all of the super friends are assembled, they come up with a plan to attack but a shocking secret related to Flashpoint is revealed and suddenly no one is sure who they can trust. Meanwhile, Wally wants to join the battle against the aliens but Iris tells him he's not ready.