Dave is abducted after he posts on the Internet that a piece of an alien life-form was found inside a dead alligator. Russell finds Dave's tape recorder with the notes for his last blog and heads out to find him, but not before sending Larkin and the kids to a motel 20 miles away.

Sheriff Tom Underlay takes his stepchildren to a remote cabin for a getaway, but he has another agenda for the trip. Meanwhile, the residents' fears grow over who is a "hybrid"; and Russell and Mariel worry about their kids' safety.