Noah Hawley’s “Alien: Earth” (FX/Hulu) brings the action home: to the year 2120, two years before the original film. When the research ship USCSS Maginot returns after 65 years in cryogenics, a nightmare explodes on Earth—run by mega-corporations. At its center is Wendy (Sydney Chandler), a child’s consciousness in an adult synthetic body, and a world where apex predators don’t just hide in shafts.