Gemma, a young mother raising her daughter in the house she grew up in, discovers she can travel into The Further, where she possesses an ability to bring what lives there back to the real world.

A live television broadcast in 1977 goes horribly wrong, unleashing evil into the nation's living rooms.

The disappearance of a decorated FBI agent's wife leads him to a secret government unit assembled to hunt a group of ruthless terrorists - shadowy figures that may or may not be from this world.