In this exciting three-part adventure, Zach and Ivy are about to capture Carmen when she unveils her newest invention, a time machine, and quickly disappears! The young sleuths' track her to the future, where Carmen has become a world-class hero and they are considered the criminals! Just as Zach and Ivy are about to blow her cover, she escapes again, but this time, she is headed into the past, to ancient Roman Coliseum! Will Zach and Ivy be able to stop Carmen before she steals the Coliseum and changes the course of history forever? Bonus episode: "Mission One," from the new CD-Rom "Treasures of Knowledge."