Captain Marvel [also appears as Billy Batson]; Mr. Mind (villain); Smashi (villain); Herr Phoul (villain) (death); Jorrk (villain) (death)
Synopsis
On Planetoid Punkus, Billy observes Mr. Mind's latest invention, a mammoth cannon called Great Big Bertha which is aimed at Earth and can fire shells that are a mile long. Billy escapes so that Captain Marvel can try to stop the cannon from being fired, but he is too late.