just 2.2 hours (approx. 2,105,990.4 x c). Having travelled faster than light, he has experienced time dilation, explaining how eight years have passed on Earth, but not for him. Dr. Faraday decides to keep him there to finish his investigation, breaking his 48-hour promise. Following a telepathic communication from the spaceship, David secretly boards it and meets its robotic commander, "Trimaxion Drone Ship" ("Max"), who calls him the "Navigator". They escape from the facility and Max tells David that his mission is to travel the galaxy collecting biological specimens for analysis on Phaelon before returning them to their homes. Phaelon's scientists discovered that humans only use 10% of their brain and, as an experiment, filled the remainder of David's with miscellaneous information. Max returned him to Earth, but not to his own time, having determined a trip back in time would be dangerous for a human. When Max crashed the spaceship, the computer's data was erased. So he needs the information in David's brain to return home. While Max prepares for a mind transfer, David meets other alien specimens on board and bonds with a "Puckmaren", a tiny bat-like creature that is the last of his kind after a comet destroyed his planet. During the mind transfer, Max contracts human emotions and behaves eccentrically. His and David's bickering trigger UFO reports in Tokyo and the United States. Meanwhile, NASA intern Carolyn McAdams, who befriended David, tells his family about his escape in the spaceship, so Dr. Faraday has them confined to their house, and Carolyn is sent back to the facility. When the spaceship stops at a gas station, David calls Jeff, who sets off fireworks on the roof to locate their new house. David and Max arrive there, but NASA agents have tracked the spaceship. Fearing institutionalization if he remains in 1986, David orders Max to return him to 1978, accepting the risk of vaporization. He awakes in the ravine, walks home, and finds everything as he left it. During the Fourth of July celebration, Jeff sees that the Puckmaren has stowed away in David's backpack. David tells him to keep it a secret, while Max flies home across the firework-lit sky, calling, "See you later, navigator!" Cast Joey Cramer as David Freeman (12 Years Old) Paul Reubens as Voice of Max Veronica Cartwright as Helen Freeman Cliff DeYoung as Bill Freeman Sarah Jessica Parker as Carolyn McAdams Matt