Part 2/9:
The episode opens with Lisa, who has unexpectedly found herself in the depths of the Earth. It is here that she encounters her grandmother, Tracy, who was believed to have died decades ago. Tracy, having been trapped in the underground world since the 1950s, is confused and shocked to see her granddaughter, who she doesn't recognize. Tracy warns Lisa to leave quickly, highlighting the perilous nature of their surroundings filled with monstrous creatures.