When Barry and Iris deal with loss of their daughter, the team faces their greatest threat yet - one that threatens to destroy all of Central City; Killer Frost has a brush with death that will change her relationship with Caitlin. Faced with the news of his impending death, Barry's resiliency suffers as he struggles to fight fate.
19 Episodes
  • Into The Void
    Into The VoidEpisode 1
  • A Flash of the Lightning
    A Flash of the LightningEpisode 2
  • Dead Man Running
    Dead Man RunningEpisode 3
  • There Will Be Blood
    There Will Be BloodEpisode 4
  • Kiss Kiss Breach Breach
    Kiss Kiss Breach BreachEpisode 5
  • License to Elongate
    License to ElongateEpisode 6
  • The Last Temptation of Barry Allen (1)
    The Last Temptation of Barry Allen (1)Episode 7
  • The Last Temptation of Barry Allen (2)
    The Last Temptation of Barry Allen (2)Episode 8
  • Crisis on Infinite Earths: Part Three (III)
    Crisis on Infinite Earths: Part Three (III)Episode 9
  • Marathon
    MarathonEpisode 10
  • Love Is a Battlefield
    Love Is a BattlefieldEpisode 11
  • A Girl Named Sue
    A Girl Named SueEpisode 12
  • Grodd Friended Me
    Grodd Friended MeEpisode 13
  • Death of the Speed Force
    Death of the Speed ForceEpisode 14
  • The Exorcism of Nash Wells
    The Exorcism of Nash WellsEpisode 15
  • So Long and Goodnight
    So Long and GoodnightEpisode 16
  • Liberation
    LiberationEpisode 17
  • Pay the Piper
    Pay the PiperEpisode 18
  • Success Is Assured
    Success Is AssuredEpisode 19
Cast of Season 6
  • Grant GustinBarry Allen / The Flash
  • Candice PattonIris West-Allen
  • Danielle PanabakerDr. Caitlin Snow / Frost
  • Danielle NicoletCecile Horton
  • Carlos ValdesCisco Ramon
  • Hartley SawyerRalph Dibny / Elongated Man
  • Jesse L. MartinJoe West
  • Tom CavanaghHarrison 'Nash' Wells

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