Fourteen year old Josh Kirby (Corbin Allred) is a typical teenager. His life is forever changed when he gets caught up in a battle between the two most brilliant scientists of the 25th century: Irwin 1138 (Barrie Ingham), a benevolent man, and the evil Dr Zoetrope (Derek Webster), the smartest man of all time. Both scientists are in pursuit of the most powerful weapon ever conceived, the Nullifier, capable of destroying the past, present and future of the universe. Irwin 1138 has seized this extraordinary device from Dr Zoetrope, broken it down into six components and scattered them through time. When Dr Zoetrope steals the coordinates and is able to determine the locations of the components, it sets off a race through time between the two scientists in an attempt to gather all the pieces of the Nullifier. Josh, who accidentally finds the first piece, joins with Irwin 1138, Azabeth the female warrior (Jennifer Burns) and Prism, the creature which is able to find the Nullifier pieces.