With the help of his old friend KNIGHTTIME, Grimlord sends Kaitlin and J.B. back to prehistoric earth and plans to do the same to Ryan. Meanwhile, the Evil emperor instructs Knighttime to construct the ultimate time machine that will send all the citizens of earth hurling back to a point before the beginning of time, thereby destroying them and making the planet his own. Grimlord sends LIZBOT to dispose of Ryan. They battle and Ryan is victorious. Meanwhile, Professor Hart has learned the location of Grimlord's time machine and also realizes that it's power might be able to retrieve J.B. and Kaitlin from the past. In a race against time, Ryan rescues his friends and then destroys the time machine once and for all. Knighttime, defeated, swears he will return.