Synopsis

Driven by the desperate need to save Iris, Barry journeys into the future to uncover the identity of Savitar. He arrives in 2024 to find his friends irrevocably changed. The loss of Iris has cast a deep shadow over them, their encounters with Savitar leaving them profoundly altered. It falls to Barry to rekindle their hope, to remind them of the heroism they have long awaited. Elsewhere, in 2017, the pursuit of Killer Frost persists.