Aqualad and Mera build a ship from items they find on the ocean floor to play a prank on Aquaman. In the meantime, a group of aliens are searching for Aquaman to take him back to the planet Stygia as a water slave. Aquaman arrives to discover his young friends are playing a practical joke on him. He is then captured by the Stickmen in a magnetic force beam. Aquaman is able to use his telepathic ability to call for help from some of his nearby fish friends. Once free, Aquaman and his friends destroy the guns on the Stickmen ship and force them to give up their attempt and return home.