Invasion tells the tale of a family trying to recover from a devastating hurricane and its mysterious aftermath. For park ranger Russell Varon, a divorced father of two expecting a third child with his new wife, and local television reporter Larkin Groves, the hurricane proves to be merely the beginning of a long journey into the unknown. Always sceptical about the paranoid conspiracy theories of his wayward brother-in-law, Dave, Russell may have to revise his thinking when a number of bizarre occurrences start taking place in his community. Though Russell's young daughter, Rose, claims to have seen hundreds of lights floating towards the water during the storm, Russell initially dismisses her claim - until he begins to suspect that something is very wrong with his ex-wife, Dr. Mariel Underlay. The morning after the storm, Mariel is found naked in the water — with no memory of what transpired the night before.

As the tiny town of Homestead, Florida attempts to rebuild itself, Sheriff Tom Underlay - who is married to Russell's ex-wife - suspiciously orders the entire area quarantined. Russell starts to investigate the strange goings-on and, unknowingly, begins a fight for the survival of his family, his community, and maybe ultimately, the human race.

Invasion stars William Fichtner as Sheriff Tom Underlay, Eddie Cibrian as Russell Varon, Lisa Sheridan as Larkin Groves, Kari Matchett as Dr. Mariel Underlay, Tyler Labine as Dave Groves, Evan Peters as Jesse Varon, Ariel Gade as Rose Varon, Alexis Dziena as Kira Underlay and Aisha Hinds as Mona Gomez.