VIDEO: The Flash's Battle with Zoom Heats Up in New Trailer

[...] the new "Zoom's Coming" extended trailer shows that he still has a lot to learn before he's ready to take on his toughest opponent yet.

Barry will eventually get out of the prison, but his toughest tasks may still be ahead -- including more battles with Killer Frost (Danielle Panabaker) and some Earth-2 complications stemming from the fact that he's married to Iris (Candice Patton) in the "alternate" universe.