Heatwave

'Legends of Tomorrow' Season 2, Episode 16: 'Doomworld'
The season’s storylines start wrapping up in this week’s “Doomworld,” as the team finds itself in a warped alternate reality where things are supposed to be really bad, but they’re only just kinda sorta bad. But then they get really bad after the Legends try to fix it. That’s their M.O. The episode was directed by Mairzee Almas, from a script by Ray Utarnachitt and Sarah Hernandez.
Rogues' Gallery: Who Is The Flash's Greatest Enemy? [Poll]
A hero is defined by their villains, and the world of superhero comic books is filled with some of the scariest and silliest bad guys around. Rogues’ Gallery aims to settle the score and determine who is the true arch-nemesis for some of favorite superheroes, and we need your help to do it! The Flash's villains aren't as scary as Batman's or as personal as Spider-Man's, but they are a collection of some of the strangest villains associated with any character in comics. Yet the question remains, which Flash villain can be considered his arch-nemesis?