Professor Danforth is convinced that Martians will soon invade Earth. He persuades the boys to help him with his new military invention—a land, air and sea vehicle (tank, helicopter, flying submarine). In return, Danforth will create a new "electronic animation" machine for the Stooges to use in their television show. The boys think the Professor a crank but accept his eccentricities along with his accommodation. No one, especially the FBI listens to the Professor's cries for help but the boys apprehend Danforth's butler who dresses like a monster to terrify the Professor. In reality the butler is a Martian spy made to look like a human.