The Year One Annuals continue, exploring pivotal events and untold stories of the DC Universe's greatest heroes. Four stories integral to Aquaman's past revolve around the villain Triton, son of Poseidon. Superman guest-stars as Triton unleashes his fury against the Sea King; Aquaman must aid a young Princess Diana when the Wonder-Woman-to-be is "chosen" by Triton; Arthur Curry takes Mera to her first encounter with air breathers and...champagne; and when Aquaman's first son is born, the god Poseidon shows Aquaman who's really King of the Seas.