In addition to Ackles and Dane, Countdown also stars Jessica Camacho, Violett Beane, Uli Latukefu, and Ackles’ The Boys co-star, Elliot Knight. The first three episodes will premiere June 25 on Prime ...

Watch the first trailer for Jensen Ackles' new Prime Video series, 'Countdown,' in which he's part of a task force trying to stop a 'Chernobyl-level event.' ...