Did you think Barry Allen would always be The Flash?
Well, on The Flash Season 2 Episode 18 you will find out you were wrong.
When Barry was faced with the choice of allowing Zoom to hold captive a member of his family or give over his powers, he chose the latter.
But that's not the end of things, not by a long shot.
Things are never simple, and The Flash team learned exactly who Zoom was before donning the mask.
What made him so evil? And how was he able to be two places at once and even kill himself for show?
To find out all about it, you need only watch The Flash online right here. Click above to get started!
Carissa Pavlica is the managing editor and a staff writer for TV Fanatic. Follow her on Twitter.