It's "The Hitchhiker's Guide to the Galaxy" meets "Time Bandits" in this action-packed science fiction adventure. Stan and Jack are the last remaining members of the Time Authority, a government unit formed to correct disruptions to the established Time Line. Although time travel has been officially outlawed, Stan and Jack must make a quick time hop to 16th Century France to clean up some of their careless littering. Unbeknownst to them, however, Leonardo DaVinci stows away and tumbles out (along with the operating manual for the time machine) in 18th Century England. This disruption is discovered by the Time Authority, as it creates a Chronological Anomaly that begins advancing toward the future and threatens to wipe out all reality. The military and civilian leaders clash before agreeing on a scheme to build one final time machine and send Corporal Spumoni back to correct the Time Line, even though it may ruin any chance of Stan and Jack returning home. Stan and Jack must crash-land their time machine in 1848, where they discover, due to DaVinci's influence, a futuristic Victorian England. After nearly colliding with Maggie Wells on her flying machine, she helps them hide their broken Time Hopper. Stan and Jack realize their only hope to fix their machine is to recover the operating manual, if it still even exists. But Special Services agents, led by Maggie's former boyfriend James Burton, are constantly searching for them. And Jack's growing attraction for Maggie is tempered by the thought that she could be his great-great-great-great-grandmother. Meanwhile, in 1768, DaVinci has become a favorite of King George III of England. His only rival is Benjamin Franklin. Jealous, with the help of Lord Frederick North, DaVinci frames Franklin for the theft of his own notebooks. But when DaVinci learns Britain's plans for his own war machines, he realizes he must work with Franklin to stop Britain's domination of the globe.