Uncovering treasure is no easy feat, but with Doraemon's magical gadgets, anything is possible. So, when Nobita and his friends set out by sea to search for treasures on an enigmatic island, they knew they could count on Doraemon's help. However, their journey takes an unexpected turn when their ship is badly damaged, leaving Nobita stranded on a strange land with a young pirate, while Doraemon and the rest of the crew are caught up in a pirate battle. Nonetheless, the quest to find the treasure presses on...