Plot Synopsis

Narrated by Sophie Okonedo, ALIEN WORLDS is a four-part speculative nature series that mixes earthly documentary sequences with one-of-a-kind filming techniques and CGI animation to imagine what lives beyond -- on alien worlds. In the last two decades, astronomers have discovered thousands of planets outside our solar system; they believe there are trillions more. Hundreds of these planets are in a habitable zone -- close enough to their own sun, but not too close -- that conditions might be suitable for living things. If life exists on only a fraction of them, then the cosmos must be teeming with alien species. But what do those aliens look like? How do they feed, reproduce and evolve? On Wednesday, December 2, 2020 at 3:01am ET/12:01am PT, Netflix released all four episodes of ALIEN WORLDS:

"Atlas": On exoplanet Atlas, dense gravity creates a thick atmosphere allowing airborne life forms to thrive -- but also providing a lesson in adaptability.

"Janus": Ants, scorpions and fireflies provide clues for biologists to conjecture about life on exoplanet Janus, including highly adaptable pentapods.

"Eden": Twin stars create an oxygen-rich atmosphere on Eden, where a teeming biosphere may parallel seasonal cycles of predation and reproduction on Earth.

"Terra": A hyperadvanced species makes their home on doomed exoplanet Terra, which orbits an aging star. Now they must colonize another world, using robots.