The Flash 1×17 Tricksters Episode Stills & Description
March 25, 2015
Aired, Mar 31, 2015
A copycat killer known as the Trickster sets off bombs in Central City. In an effort to stop him, Barry and Joe seek help from the original Trickster, a criminal mastermind who has been imprisoned for 20 years. Meanwhile, Iris asks Eddie to help with a case. In flashbacks, Harrison Wells is shown coming up with the idea for the particle accelerator.