Run from the past with The Flash as Barry Allen (Grant Gustin) faces a foe he can’t outpace. A metahuman with toxic gas powers terrorizes Central City, forcing Barry to confront his limits while saving trapped victims. Caitlin (Danielle Panabaker) reveals her fiancé’s death in the accelerator explosion, bonding with Barry over loss, while Cisco (Carlos Valdes) and Wells (Tom Cavanagh) tweak his speed. Joe (Jesse L. Martin) digs into Wells’ secrets, and a flashback to Barry’s mom’s murder deepens the stakes.

With dazzling effects, emotional depth, and a villainous twist, this episode accelerates—can Barry outrun his ghosts? Dash in now!