The episode sets the stage for the series' ultimate conclusion by introducing the Time Travel Formula found in Micah's notebook. This formula suggests that the only way to save humanity is to break the loop by preventing Sacha and Emily from ever meeting, a plan that requires Bill to make a devastating moral sacrifice in the finale. War of the Worlds Season 2 Episode 7 Review - Den of Geek
: The merging of Catherine’s physics knowledge with Bill’s virology allows them to finally understand the mechanics of the time loop they are trapped in. 🛡️ Cast of the Episode Bill Ward : Gabriel Byrne Catherine Durand : Léa Drucker Emily Gresham : Daisy Edgar-Jones Sacha Dumont : Mathieu Torloting Sarah Gresham : Natasha Little Tom Gresham : Ty Tennant 🛰️ The Science and the Loop War of the Worlds - Season 2Eps7
: Bill and Catherine unite in London and realize the "aliens" are actually human descendants from the future. The episode sets the stage for the series'
In this penultimate episode, the survivors finally piece together the true nature of their enemy: 🛡️ Cast of the Episode Bill Ward :