The time traveling Foot Doctor discovers that the Cyberons and Autons are ineffectually trying to invade the Earth yet again. Can he and a helpful salesman save the day or will his arch enemy The Licensor defeat him for good?

When Dr Lauren Anderson agrees to Thomas Mordley testing his experimental new drug Cyberon on her brain damaged patients she expects little benefit. But Cyberon is going to revolutionize medicine and maybe even the world.