Fear Will Be Your Enemy

Cisco's sick, but that's the least of his problems. His powers are increasing, and he's experiencing intense vibes. He hears dark voices from the past, persuading him to embrace the role of Reverb. With a chance to set things right for Dante, Cisco struggles to resist the urge of joining the Dark Side. Will his friends lose him as a member of Team FLASH? Forever? Can they save him?