University of Wisconsin graduate student Teri MacDonald has trained a chimpanzee named Virgil to use sign language. When her National Science Foundation research grant is not renewed, she is forced to sell Virgil. He is taken to an Air Force base in Lockridge, Florida, to be used in a top-secret research project involving flight simulation, though she’s told that he’s been sent to the Houston Zoo.
Airman Jimmy Garrett is assigned to the same chimpanzee project. Virgil and Jimmy quickly bond, and Jimmy discovers that Virgil has been taught sign language. Unbeknownst to Jimmy, once the chimpanzees reach a certain level in operating the flight simulator, they will be exposed to a lethal pulse of radiation to determine how long a pilot may survive after a nuclear exchange in carrying out a second strike.
When Jimmy becomes aware of the chimpanzees’ fate, he contacts Teri, who comes to the base. Teri tells Jimmy that she will inform the NSF of the deception, but Jimmy explains that she does not have enough time because Virgil is scheduled to die soon.
Jimmy challenges Dr. Carroll and others about the project’s value by noting that the hypothetical pilot, knowing the implications of the second-strike scenario, would know that he is dying, and would, therefore, be affected by that knowledge. However, the chimpanzees would not be as aware; thus, the project is flawed.
Meanwhile, in the vivarium, some of the chimpanzees have unlocked their cages and have stacked crates and boxes to attempt an escape through a skylight. Jimmy, Teri, Dr. Carroll and the authorities walk in the vivarium to see the chimpanzees loose. Virgil is at the top of the stack and attempts to break the skylight with a crowbar. Teri sees Virgil up top and convinces him to come down.
Dr. Carroll attempts to control the chimpanzees with an electric prod, but Goliath the chimpanzee overpowers Dr. Carroll and the authorities, forcing them to flee. Many chimpanzees escape the vivarium and cause havoc throughout the base, while Goliath and two other chimpanzees Winston and Spike reach the flight chamber.
Inside, Goliath and the other two chimpanzees wreck the simulator and short the reactor’s wall control panel, causing the radiation reactor to go up. Jimmy, Teri and Virgil arrive and see the chimpanzees continue to wreck the flight chamber. Jimmy gets Winston and Spike out and barely escapes, however, Goliath’s refusal to leave despite Jimmy’s pleas traps him in the flight chamber just as the reactor’s wall panel short circuits and generates a radiation blast.
A fire extinguisher left by the chimps jams the reactor on its way down, posing a risk of a possible meltdown. Jimmy and Virgil convince Goliath to yank out the jammed fire extinguisher and succeed, but Goliath later dies from radiation exposure.
Jimmy and Teri steal a military plane to help the chimpanzees escape, but are stopped by the military police. While the police are holding them, Virgil pilots the plane, and the chimps fly away. They eventually crash in the nearby Everglades and evade a search. Just as the search is being abandoned, Jimmy and Teri see Virgil hiding in the bush with his chimpanzee girlfriend Ginger. Teri signs to Virgil that he and the others are now “free”, and the chimpanzees disappear into the Everglades.
Don’t miss the emotional journey of “Project X”. Watch it for free now and discover the heartwarming bond between humans and chimpanzees.