The Aquatic Villain Team is a group of five supervillain girls who are expert swimmers and have incredible superpowers. Their names are Deathly Diver (she's the leader), Poisonous Pufferfish, Killer Shark, Murderous Mermaid and Jelly Sting, and all of them are always completely dressed in long-sleeved full-body rubber wetsuits, swimming goggles, rubber gloves, swimming caps, flippers, nose-clips, snorkels and supervillain capes, as well as other accessories depending on who we're talking about. They all live in an enormous underwater villain lair and are planning on creating a powerful fish army to take over the world!