Meanwhile, The Thinker (guest star Neil Sandilands) traps The Flash (Grant Gustin) in a speedster-proof prison.
Following the promo that was released yesterday, The CW has released the first batch of photos from The Flash‘s midseason finale! Check out The Flash Episode 4.09 photos in the gallery below.
Amunet tells Caitlin she needs her to perform a tricky medical task and if Caitlin fails, Amunet will kill her.
“Amunet (guest star Katie Sackhoff) kidnaps Caitlin (Danielle Panabaker) and puts meta-dampener handcuffs on her to keep her from turning into Killer Frost.