Radio astronomers discover a mysterious signal in the deep sea that could be contact with extraterrestrials. After several terrifying manifestations threaten their beliefs, the team must fight to survive the ultimate evil.

Samantha Banks is a successful businesswoman with a lawyer boyfriend. But over one crazy Thanksgiving week with her scheming family, her whole world is thrown into a tailspin when they invite her ex, "the one that got away".

When a group of friends decides to follow a car they've seen posted on an Amber Alert, things start to go very wrong.