The young Jim Hawkins is hired by an old seadog Billy Bones to look out for a sailor with one leg. Despite this precaution, Bones is found dead in suspicious circumstances. Searching through his belongings Jim finds a treasure map, which he shows to the local doctor and a wealthy squire. They engage a ship and captain, but unwittingly they hire the ruthless and immensely strong Long John Silver, who has designs on the treasure, as their cook...