18 user 10 critic


The Legends work with The Flash, Supergirl and Green Arrow to kill the invaders; while working out how to defeat the Dominators, Stein gets distracted by the aberration he created in 1987.


Gregory Smith


Greg Berlanti (developed by), Marc Guggenheim (developed by) | 5 more credits »




Episode cast overview, first billed only:
Victor Garber ... Dr. Martin Stein
Brandon Routh ... Ray Palmer / The Atom
Caity Lotz ... Sara Lance / White Canary
Franz Drameh ... Jefferson Jackson / Firestorm
Maisie Richardson-Sellers ... Amaya Jiwe / Vixen
Amy Louise Pemberton ... Gideon (voice) (as Amy Pemberton)
Nick Zano ... Nate Heywood / Steel
Dominic Purcell ... Mick Rory / Heat Wave
Stephen Amell ... Oliver Queen / Green Arrow
David Ramsey ... John Diggle / Spartan
Emily Bett Rickards ... Felicity Smoak
Danielle Panabaker ... Caitlin Snow
Carlos Valdes ... Cisco Ramon / Vibe
Melissa Benoist ... Kara Danvers / Supergirl
Grant Gustin ... Barry Allen / The Flash


After learning the Dominators' plan for the world, the Legends must work together with The Flash, Supergirl and Green Arrow to kill them once and for all. Meanwhile, Stein figures out, with the help of others, how the team can terminate the Dominators, but is distracted by the aberration he created in 1987.

Plot Summary | Add Synopsis


TV-14 | See all certifications »

Did You Know?


At 28:29 a character says "Oh, frak". "Frak" originated in the original "Battlestar Galactica" as an alternative four-letter word beginning with "f" and ending with "k" which would be acceptable to censors. See more »


The bullet that comes out of the agent's gun is much too large to have been fired from that diameter of gun barrel. Also, the entire shot is poorly timed as the gun recoils too fast relative to the speed of the bullet. See more »


Cisco Ramon: [to dominator alien] Listen E.T. we're not a threat, Meta's are helping the earth.
See more »

Crazy Credits

The logos for Arrow, the Flash, and Supergirl are added to the opening credits. See more »


References Supergirl (2015) See more »


The World (Is Going Up in Flames)
Performed by Charles Bradley & Menahan Street Band
See more »

User Reviews

Fast Forward....
24 March 2019 | by Australian1See all my reviews

Fine if you are a fanatic at the time to watch the Flash, Arrow, Legends of Tomorrow and/or Supergirl to make sense of this "Invasion" ! Moronic idea! I watched Legends, years ago! Then my sister told me of Arrow. I get to a point in season 5 where this Invasion is slotted between the regular episodes! Then I find out there is an Invasion episode in The Flash! Who is The Brain behind this confusing unnecessary intermingling of 4 separate shows, which some people may not like??????? Supergirl at one stage looked like a lesbian show with Alex and Maggie, one third of each episode is devoted to their antics!!!! The shows muck up the history! Jimmy Olsen was NEVER a black guy in all the Superman shows, movies! All of a sudden we have homosexuals, lesbians...

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Release Date:

1 December 2016 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
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