War Of The Worlds - | Season 2

In the finale, Bill uses a time-travel formula to go back to the day of the first contact. He kills Emily in the past to prevent the existence of the future human-invaders, successfully undoing the invasion and all deaths across both seasons. Episode Guide Key Events 1

French survivors Catherine, Nathan, and Sophia attempt to reach London.

Catherine finds Bill in London; Bill explains his plan to infect the alien race. War of the Worlds - Season 2

Bill travels back in time, resets the timeline by killing Emily, and is arrested for murder in the "new" reality. Season 2 – War of the Worlds - Rotten Tomatoes

Neuroscientist Bill Ward (Gabriel Byrne) develops a virus to target the invaders. He tests it on Emily Gresham (Daisy Edgar-Jones), discovering it is effective because she shares genetic material with them. In the finale, Bill uses a time-travel formula

The season begins six months after the initial attack. The survivors in London have formed a resistance, while the "aliens" are revealed to be humanoid in appearance.

The groups unite; they realize the invaders are actually their own future descendants. Catherine finds Bill in London; Bill explains his

Catherine discovers the method of alien travel (space and time) via computer algorithms.