Season One

The Nuclear Man

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After a scientist turns up in critical condition Barry and the team must try to find Caitlin’s fiancé Ronnie, a dangerous meta-human now under the control of Dr. Martin Stein. Joe enlists Cisco’s help in running forensics on the room where Nora Allen died, and Barry struggles to maintain his heroics and his relationship with Linda.

U.S. air dates are in MM.DD.YY form.   U.K. air dates are in DD.MM.YY form.

News & Spoilers

ROBBIE AMELL AND VICTOR GARBER GUEST STAR AS FIRESTORM - After Ronnie (guest star Robbie Amell) attacks a physicist (guest star Bill Dow), Barry (Grant Gustin) and the team realize they need to go after Caitlin's (Danielle Panabaker) fiancé who is now a dangerous meta-human. They deduce the best way to track Ronnie is to find Dr. Martin Stein (guest star Victor Garber) who was working on a project called F.I.R.E.S.T.O.R.M. Barry struggles to balance his duties as The Flash and his relationship with Linda Park (guest star Malese Jow), and Joe (Jesse L. Martin) enlists Cisco's (Carlos Valdes) help to reinvestigate the murder of Nora Allen (guest star Michelle Harrison). General Eiling (Clancy Brown) returns to Central City. Glen Winter directed the episode written by Andrew Kreisberg & Katherine Walczak (#113).