With nothing left to lose, Barry takes on Savitar in a final showdown.
Barry chooses to use any means necessary to save the woman he loves; The Flash turns to Captain Cold for help.
Barry takes desperate measures to stop Savitar, while H.R. keeps pressuring Tracy Brand to set a trap for Savitar and Killer Frost has an interesting proposal.
Team Flash meets a scientist who may be the key to stopping Savitar, but is forced into a battle with Killer Frost.
Barry travels forward in time to 2024 to find out Savitar’s identity and save Iris’ life.
The Flash fights a villain from the 64th Century named Abra Kadabra, who offers to reveal Savitar’s identity in exchange for his release.
The Music Meister sends Supergirl and the Flash to a world where life is a musical and the only way to escape is to sing and dance.
Desperate to stop Savitar and save his friends, Barry turns to the speed force for answers; H.R. gives Jesse some advice.
While training with Barry, Wally starts to have visions of Savitar, which he hides from the team. A dangerous secret threatens Barry and Iris’ happiness.
Grodd and his army bring their battle to Earth-1, which the team must find a way to stop.
Barry and the team travel to Earth-2 to rescue Harry from Gorilla City, where they’re captured and brought to Grodd, who claims he needs their help to stop Solovar.
A criminal meta-human is causing people to decompose at an accelerated rate.