Context: Superboy is visiting Hollywood with Ma and Pa Kent when he saves movie mogul Boris Xavier's home from a fire. In gratitude, and because surely, Superboy is a bankable (and super-powered) star, the mogul offers Superboy the chance at a screen test, and if all goes well, at a movie career. The proceeds of a Superboy film could go to charity and so on. But during this trip, Krypto returns from space and finds his master not at home. Where could he be? Time to make a sweep of these United States:
If you've been reading this series for the past 20 weeks, you'll realize instantly that jealousy is bound to flare between the boy and his dog. Superboy just can't STAND it when he's not the center of attention, and in this story, people push past him to get a glimpse of Krypto or get his teeth marks in a piece of paper, oblivious to the fact that there's a real-live superhero standing right there (and pretty much the world's only superhero, in these stories). Xavier gets Krypto hooked on the good life - diamond collars, fancy bone restaurants, pampering - and it certainly goes to the dog's head.
Sayeth Ma Kent: "Krypto must realize now that our son's love is worth more than all the make-believe in Hollywood!" Yes, Superboy loves his dog so much he was willing to POISON HIM so he would stop drawing attention away from his own adventures!
Meanwhile, in "The Two Faces Of Superman!" (see all the crazy details HERE), Krypto encounters his master's evil double, Super-Bully, and doesn't like him at all!