After recent events, Barry takes a closer look at his life with Iris. Eva makes a bold move.

The Flash must deal with Abra Kadabra's sudden return to Central City. The villain is back with a vengeance and a score to settle. Meanwhile, Allegra deals with a tricky situation and Caitlin suspects something is off with Frost. Iris is forced to look at a dark moment in her past.

Cisco and Chester travel back in time and get stuck in 1998, repeating the same day over and over again. The key to returning home is at Chester's childhood home but he refuses to visit.

The Flash and team are in for the fight of their lives, meanwhile, Iris discovers the cause of her time sickness.