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.

Megan's world is turned upside down when she hears her calm life with her little brother and single mum is about to change. She hears she's soon to have a stepfather and a stepsister. Megan thinks they're a bit weird and is determined to stop the wedding. She discovers they're actually even stranger than she thought - they're from another planet.