The Mystery, Inc. gang follows Professor Pericles and his minions down into the caves, where the ancient keys will unlock the sarcophagus. Scooby and the others hope to surprise Pericles, but he knows he's being followed; in fact, he's counting on it . . .
In order to defeat the entity inside the sarcophogus, the gang goes south of the border in attempt to search for the Heart of the Jaguar.
Captain Atom is drained of his powers but continues to try serving as a superhero with the Justice League, with an assist from Batman.
After the world's greatest baseball game, Lex Luthor, Cheetah, and Joker team up to bring down their respective opponents... by switching heroes.
To protect all of Batmen's past incarnations, the JLI must travel through time to save the Caped Crusader's selves.
Batman and Hal Jordan team up to take on the latter's female nemesis, Star Sapphire.