When inexperienced criminal Ben holds up a small-town restaurant, the poorly-planned robbery spirals into a hostage crisis beyond his control. Trapped inside with him is his girlfriend, manager Adie Graham, a cunning sociopath.

A delusional cryptozoologist and a psychopathic television presenter lead an amateur expedition into wild forests in hopes of finding the legendary Thunderbird, which they believe is the ancestor of a prehistoric Pteranodon.