On the Night of the Horror of the Alligators, a twelfth grade prom group got lost in the Everglades at night and found the island. As the group slept during the night, each individual was picked off by the alligators except for Colo Plum, for whom the island is named after.
While touring the Everglades, Jesse halts the air boat to direct Eldon, James, and West's attention to Coco Plum Island. The boys instantly laugh at the island's name, although this laughter dissipates with Jesse tells them the story of how the island was named.
Coco Plum Island is surrounded by carnivorous alligators. The island consists of browned grass and a large cluster of deciduous trees.