Thirteen years after the battle of Calypso's maelstrom, a twelve-year-old Henry Turner boards the Flying Dutchman and informs his father, Will, that the curse which binds Will to the Dutchman and only permits Will to step on land once a decade can be broken by the Trident of Poseidon. Henry intends to recruit Captain Jack Sparrow to help find it, but Will believes this is impossible and orders Henry to leave. Will and the Dutchman then disappear into the sea, but Henry vows to find Jack and the Trident. Nine years later, Henry is a sailor in the Royal Navy. The ship sails into the supernatural Devil's Triangle and stumbles upon the wreck of the Silent Mary, whose ghostly crew led by Spanish pirate-hunter, Captain Armando Salazar, attacks, sparing Henry's life so that he can deliver a message to Jack, who killed Salazar and his crew decades ago by leading them to the Devil’s Triangle and inadvertently cursed them. In Saint Martin, a young astronomer named Carina Smyth is sentenced to death for witchcraft but escapes and crosses paths with Jack as he and his crew blunder a bank robbery. Jack trades his compass for a drink, and the betrayal of the compass frees Salazar and his crew from the Devil's Triangle. Carina learns Henry is looking for the Trident's resting place and offers to help him using her unknown father's diary. Carina and Jack stall the execution process, but they escape with the help of Henry and Jack's crew, setting sail on the Dying Gull. Carina deciphers the clues in her diary, discovering that the stars will lead to an island where the Trident is hidden. Within time the quest is on to find the trident and break the curse.