Two scientists involved in chimpanzee research -- one maintaining that the animals should be kept in their native habitat in Africa without human interference, the other trying to train them in sign language in a domesticated atmosphere -- join forces when they learn that the government plans to cut off the language grant and use the chimps for radiation research.

A feature that not only celebrates the 1986 classic "Flight of the Navigator", but also looks at the life of its child star, Joey Cramer, and his roller-coaster life since that breakthrough role.