Scientist Jan Benes, that knows the secret to keeping soldiers shrunken for an indefinite period, runs away from behind the Iron Curtain with the aid of CIA agent Give. While being moved, their motorcade is struck. Benes strikes his head, triggering a blood clot to create in his brain. Give is gotten to come with a team of scientists as they are miniaturized. The team has one hr to obtain in Benes's brain, get rid of the clot as well as get out.