Cameron and Casey live on the campus of Gazoo University with their parents who are professors there. As such, they and their cat, Zeus, pretty much have free reign of the campus. The place that they enjoy most is the campus planetarium. One day., while the kids are looking up at the galaxy, Zeus, who has a voracious appetite, accidentally jams the controls when he mistakes a lever for a candy bar. As a result, the projection spins wildly out of control, despite Zeus's efforts to fix it, and a vortex is created. The vortex opens up a worm hole, out of which a strange being falls to the floor. This being, with a huge globe-like head, introduces himself as a Galactic Observer, a G.O., who has come to observe Earth's present and past cultures. Using a Galactic Observer Time and Gravity Override (G.O.T.A.G.O.) He can manipulate time and fly a light speed. He invites the kids to join him on his quest for knowledge.

Casey, the younger, albeit more mature sister, is excited at the idea of seeing the world from an educational standpoint. Her slightly older brother, Cameron, is not as intersted in the cultural aspects of the adventure as he is in fun and flying. Zeus wants to come along to sample the food. G.O. agrees to stay on campus, morphing into various objects in order to stay hidden until such time as the kids can join him on a trip.

The show is a half hour long animated series. Each episode focuses on a different culture, both current and ancient, which somehow ties into a dilemma or issue with which the kids are faced. G.O., who is always nearby, manages to pop-up out of nowhere just when the issue or dilemma becomes apparent, suggesting that they take a trip in order to find the solution. In doing so, he makes a suggestion of a time and place and using the G.O.T.A.G.O. which is on his belt, he presses buttons saying Enie Menie Minie Moe...Get a get a G.O.T.A.G.O., and off they go.