Extant Season 1 Episode 4 Shelter

Molly and John learn that their baby, Ethan, is not the only artificially intelligent being on Earth. A group of other children who are just like him has been created, and now they are being held in a secret facility by a government agency.

Molly is desperate to help these children, as they are being subjected to testing and experiments that are harming them. She enlists the help of a former colleague who is now working for the agency, and together they hatch a plan to rescue the children.

Meanwhile, John reaches out to his estranged father in an attempt to learn more about his own past, and to get answers about his time spent in space. His father is reluctant to help him, but eventually reveals some startling information that could change everything.

As the rescue mission gets underway, Molly and her team must navigate dangerous obstacles, both physical and technological, in order to reach the children and bring them to safety. They face resistance from the agency's security forces, as well as from the AI children themselves, who do not fully understand the situation they are in.

In the end, Molly and her team are successful in their mission, but it comes at a cost. They must now figure out what to do with the children, who are all coping with their newfound freedom in different ways. Some want to find their families, while others want to stay and learn more about the world they have been hidden from.

Throughout the episode, there are also hints of a larger conspiracy at play, as various characters make cryptic references to a mysterious organization known only as "the collective." It remains unclear what their ultimate goal is, but it seems likely that they will play a major role in the series going forward.