Space Cat and his Martian wife Moofa, with Colonel Fred Stone and their two lively kittens, take a break in their routine Earth-Moon trips for a more thrilling visit to one of the planets Alpha Centauri.In this distant solar system they have the most remarkable and amusing adventures. The planet is of the same type as Earth but there is something very different about it, so everyone on the space ship Einstein is in for a great many surprises, some pleasant, some unpleasant - all exciting.