The Flash
Season 3 Episode 8 - Invasion! (II)
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 of Tomorrow, 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. The crossover starts on Supergirl S02E08 Medusa (I). It continues on Arrow S05E08 Invasion! (III) and DC's Legends of Tomorrow S02E07 Invasion! (IV).
Episodes in Season 3
Flashpoint
42 min
Paradox
42 min
Magenta
42 min
The New Rogues
42 min
Monster
42 min
Shade
42 min
Killer Frost
42 min
Invasion! (II)
42 min
The Present
42 min
Borrowing Problems from the Future
42 min
Dead or Alive
42 min
Untouchable
42 min
Attack on Gorilla City (1)
42 min
Attack on Central City (2)
42 min
The Wrath of Savitar
42 min
Into the Speed Force
42 min
Duet (II)
43 min
Abra Kadabra
42 min
The Once and Future Flash
42 min
I Know Who You Are
42 min
Cause and Effect
42 min
Infantino Street
42 min
Finish Line
42 min
