After a thrilling cliffhanger last season which saw the new Mirror Master (Efrat Dor) victorious and still-at-large in Central City, Barry Allen aka The Flash (Grant Gustin) must regroup in order to stop her and find a way to make contact with his missing wife, Iris West-Allen (Candice Patton). With help from the rest of Team Flash – which includes superheroes Caitlin Snow (Danielle Panabaker), Cisco Ramon (Carlos Valdes) and Nash Wells (Tom Cavanagh), as well as the Flash’s adoptive father Joe West (Jesse L. Martin), Meta-Attorney Cecile Horton (Danielle Nicolet), tough cub reporter Allegra Garcia (Kayla Compton) and brilliant tech-nerd Chester P. Runk (Brandon McKnight) – Flash will ultimately defeat Mirror Master. But in doing so, he’ll also unleash an even more powerful and devastating threat on Central City: one that threatens to tear his team – and his marriage – apart.