When Norbert, Daggett and Stump get stuck in a cave after a spelunking accident, Daggett must fight off his urge to eat his dear friend Stump. Meanwhile, Norbert attempts to figure out if there's any possible way for the group to make it out of the caves.
- The sign shown at the beginning of the episode reads, "Pawhuska Mining Company".
- Throughout the episode, especially the mine car scene, Norbert's eyes turn yellow.
- A Journey to the Center of the Earth - This episode is based on the 1864 science fiction novel written by Jules Verne. Norb even mentions the author after Dag notices the engraving "A.S./<---".
- What's Eating Gilbert Grape - The episode's title is a reference to the 1993 drama film.