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?


The team up of the various heroes from the 4 different shows serves as a de facto Justice League of America. Of the superhero characters appearing in this episode, only Heatwave, White Canary, Spartan, and Killer Frost were never members of the League at some point in their career in the comic books. Several other League members have appeared in all four shows as supporting or recurring characters. See more »


The writers were forced to minimize Supergirl's participation due to budget considerations, forcing Oliver to make the illogical decision to sideline her for most of the action. See more »


Caitlin Snow: You know, you're really taking this whole "Absent-Minded Professor" thing to a new level.
Dr. Martin Stein: I don't know what you mean.
Caitlin Snow: Your daughter. Ever since you've come back, you've treated her like a total stranger.
Dr. Martin Stein: [angrily] That's because she is a total stranger!
[calming down]
Dr. Martin Stein: Sorry. It's just that when I last left 2016, that young woman did not exist.
Caitlin Snow: Wait, you're saying Lily belongs to another timeline? That when Barry created Flashpoint, she...
Dr. Martin Stein: Unfortunately, this is all my fault. You see, a month ago, I ...
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

3 January 2018 | by verbosity-64194See all my reviews

For anyone who has not watched the other television series involved in this episode of Legends of Tomorrow, be prepared to wonder what the heck is going on, because this episode is not going to make sense and you may believe you are watching the 3rd series, instead of the 2nd. Daft idea.

11 of 21 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 18 user reviews »

Frequently Asked Questions

This FAQ is empty. Add the first question.




Release Date:

1 December 2016 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Contribute to This Page

Recently Viewed