The second season of the (2019 TV series) significantly shifts from a standard alien invasion to a high-stakes sci-fi thriller involving time travel and genetic evolution. Plot Overview & Key Developments
It is revealed that the invaders are not from another galaxy but are the descendants of Emily and Sacha , who traveled back from a distant future to harvest healthy organs and fix their genetic defects. War of the Worlds - Season 2
The groups unite; they realize the invaders are actually their own future descendants. The second season of the (2019 TV series)
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 season begins six months after the initial attack
Catherine finds Bill in London; Bill explains his plan to infect the alien race.
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