Marielle becomes suspicious when her sister-in-law escapes from a cult and seeks refuge at her home. When another cult member shows up on her doorstep, she fears her daughter is their next target.
After a help signal from a research vessel makes it back to Earth, the U.S. Space Force sends a rescue ship to Pandora, a moon of Saturn. But when they try to land, they discover Pandora is inhabited by a highly evolved humanoid species.
After a violent car accident robs Grace of her memory, a handsome stranger enters her life, insisting that they are lovers. As her memory returns bit by bit, the stranger's story begins to unravel. Grace is forced to fill in the gaps and uncover the truth, suddenly fearing for her life.