Doctor Fission was scientist who invented a time machine driven by atomic power and invited the Black Terror and his sidekick, the Kid Terror, to test it out. They landed thousands of years in the future, when the ocean had swallowed up the location of the Terror's home city. With the help of Bo Briantus, they returned to the present with a little memento of the future, and Bob Benton told his story to the Fibbers Club.