After a top-secret experiment goes wrong, a hyper-intelligent invisible raptor escapes the lab and begins wreaking havoc in the surrounding neighborhood. When the creature’s identity is uncovered, it soon becomes clear that a disgraced paleontologist—alongside his ex-girlfriend, an unhinged amusement park security guard, and a local celebrity chicken farmer—is the town’s only hope for surviving the raptor’s ravenous rampage.

Based on real events, the story follows a father and son (Offerman and Tremblay) who identify as Sovereign Citizens, a group of anti-government extremists, as they venture across the country and find themselves in a standoff with a chief of police (Dennis Quaid) that sets off an intense manhunt with tragic consequences.