Jim Hawkins had no idea what he was getting into when the pirate Billy Bones showed up at the doorstep of his mother's inn. When Billy dies suddenly, Jim is left to unlock his old sea chest, which reveals money, a journal, and a treasure map. Jim sets sail on a dangerous voyage to locate the loot on a faraway island.

This story tells how scientist Dr Henry Jekyll believes every human has two minds, a good one and an evil one. He develops a potion to separate them from each other. Soon, his evil mind takes over, and Dr Jekyll becomes a hideous fiend known as Mr Hyde.