A wealthy entrepreneur secretly creates a theme park featuring living dinosaurs drawn from prehistoric DNA. Before opening day, he invites a team of experts and his two eager grandchildren to experience the park and help calm anxious investors. However, the park is anything but amusing as the security systems go off-line and the dinosaurs escape.
On a flight transporting dangerous convicts, murderer Ryan Weaver manages to break free and cause complete chaos throughout the plane. As various people on board fall victim to Weaver, it is ultimately down to flight attendant Teri Halloran to keep the aircraft from crashing, with on-ground support from an air traffic controller. While Halloran struggles to pilot the plane, Weaver continues to terrorize the surviving members of the crew.
Hard-edged cop John Kimble gets more than he bargained for when he goes undercover as a kindergarten teacher to get the goods on a brutal drug lord while at the same time protecting the man's young son. Pitted against a class of boisterous moppets whose antics try his patience and test his mettle, Kimble may have met his match … in more ways than one.