Adam MacArthur helps repressed and banished scientist Louis Farraday realize his life-long project to conquer gravity. Chased by both the FBI and Vise, they utilize this discovery to make their escape in a vintage World War II fighter plane

After his escape from the FBI, Adam must get Michael O'Ryan and his craft back to their home or Earth will be endangered. Col. Vise has other plans, forcing Adam to go back to the FBI for help.