When an old pirate staying at his family's seaside inn dies, young Jim Hawkins discovers that he left behind a map showing the location of buried pirate treasure. When Jim shows it to the local squire, he buys and outfits a ship and, with Jim and the local doctor, they set sail to seek the treasure. But the dead pirate's shipmates, led by the charming and magnetic Long John Silver, want the treasure too, and will stop at nothing to get it -- including infiltrating the crew.