"Extant" is a futuristic sci-fi thriller that revolves around Molly, an astronaut who returns home from a yearlong solo mission aboard the Seraph Space Station and discovers that while she was up there, she became pregnant. Meanwhile, her inventor husband is on the verge of a major breakthrough with his greatest creation, their ten-year-old android son. These events place this extraordinary family at the epicenter of a change in the course of human history, a change that could ultimately tear them apart.