Tue, 17 February 2015 at 5:20 pm

Time Travel is Tested on Tonight's 'The Flash'

The Flash (Grant Gustin) looks a little crispy in this still from tonight’s episode of The Flash.

In “Fallout,” after the nuclear explosion separates Ronnie (Robbie Amell) and Dr. Stein (Victor Garber), Barry (Gustin) and the team believe both men are safe.

Caitlin (Danielle Panabaker) is thrilled to have her fianc� back and prepares to resume their life together while Dr. Stein returns to his wife.

However, when General Eiling (Clancy Brown) targets Firestorm, Ronnie and Dr. Stein must decide if they are safer together or apart.

Meanwhile, Mason Bridge (Roger Hayworth) tells Iris (Candice Patton) that there is something secretive going on at S.T.A.R. Labs and Dr. Stein gives Barry some important information about time travel.

The Flash airs TONIGHT, February 17 @ 8PM on The CW!

Also pictured below: Robbie and his fiance Italia Ricci arriving at Pearson International Airport on Sunday (February 15) in Toronto, Canada. Grant and his co-star Rick Cosnett shooting an action scene the following day in Vancouver.