Synopsis by Hans J. Wollstein
Chapter ten of Universal's Pirate Treasure reveals that Dick Moreland (Richard Talmadge) miraculously survived the dramatic fall from the cliff. Back at the treasure site, meanwhile, savage natives attack Brasset's men, who take cover in the expedition's hut. Happily, Captain Carson (William Desmond) speaks the island's native tongue (Spanish) and the savages promise to help the expedition. The treasure chest, alas, proves filled with rocks instead of gold but a mysterious letter points to where the real riches are located. Unfortunately, Brasset's men get there first and when Dick and Dorothy (Lucille Lund) finally arrive, they find the place booby-trapped.