Colony

In a dystopian future, Los Angeles is occupied by extraterrestrial forces and walled off from the rest of the world. A former FBI agent and his wife risk everything to find their missing son, who was separated from them during the invasion. They must navigate dangerous factions and make difficult choices to stay together and survive in a world torn apart by alien occupation.

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Some TV shows that have similar genres and were produced around the same time as Colony include Fallout, 3 Body Problem, The Big Door Prize, Severance, The Walking Dead: The Ones Who Live, The Last of Us.