When intrepid adventurer, Jim Maitland, returns to England for a brief visit, he meets a charming young woman named Judy Draycott, who solicits his help in a perilous matter. She relates the story of her brother, Arthur - drifting in South America until he meets an old sailor who, on his deathbed, tells him about a hoard of buried treasure. When Arthur is shot during an attempt to return to London...