Black Manta has implanted an antenna device on top of the head of a killer whale. Using a brain-scramble on board his sea-saucer he drives the whale berserk, forcing it to attack Aquaman, Aqualad and Mera. The whale unseats Mera from her sea-horse, and she drops down into the clutches of a giant clam. Aquaman and Aqualad leave her, believing that the clam is the safest place for her.