If you watched this week's episode of The Flash, "Family of Rogues," you saw Professor Martin Stein is having some problems since Ronnie Raymond disappeared. It appears his body has become unstable and we'll get to meet Jefferson "Jax" Jackson. (Why Jefferson, a friend of Ronnie's in the comics, is used instead of Jason Rusch isn't clear).
Here's a preview for next week's "The Fury of the Firestorm."
How will Jason take being Firestorm? Have they created a monster or will he become an ally to Team Flash? We'll find out when the episode airs on Tuesday, October 26, on The CW at 8/7c.