The Flash

With Barry trapped in the speed force, Iris, Kid Flash, Joe and Vibe have taken over protecting Central City. However, when a powerful armored villain threatens to level the city if The Flash doesn't appear, Cisco makes a risky decision to break Barry out of the speed force. However, the Barry that comes out isn't the same Barry that went in.

Barry comes face to face with DeVoe (guest star NEIL SANDILANDS), whose past is revealed through flashbacks. Meanwhile, Iris puts the final touches on the wedding, which is a week away.

When Barry needs help transporting a dangerous meta, he calls on a new friend for help – Leo Snart aka Citizen Cold (guest star WENTWORTH MILLER). Meanwhile, Cisco becomes suspicious of Harry.

In the Season Four finale, Team Flash gets help from a surprising ally in their battle against DeVoe.