An oddly paired duo, Pete, a computer "junkie" and class nerd, and Lilly find themselves trapped in a time warp. As they travel through time and space they have to solve numerous mysteries of the past or rescue some unusual characters they meet along the way. Their missions are as exciting as they are dangerous, but the children are helped by a mischievous clay imp and his magical powers. However, they soon realize that the wacky little mascot offers more than the simple thrill of adventure and breaking away from his dominance will become their greatest challenge.