Captain Invincible and his intrepid space-dog, Comet, are on a perilous journey back to Earth!

Throughout their mission, the fearless captain and his canine sidekick encounter asteroids, poisonous gas, and alien beings. But will their knowledge of three-dimensional shapes, including cubes, cones, and pyramids, help our heroes navigate past these obstacles -- and make it safely home? Gr. 1-2