An evil sorceress transports the gang back to the age of chivalrous knights, spell-casting wizards, and fire-breathing dragons.

When the Justice League goes missing and villains overrun Metropolis, there's only one team that can solve this mystery: Scooby-Doo and the gang! But wait, there's a new dog in town – Krypto – Superman's Superdog with Super Powers. Mystery Inc. will need all the help it can get when phantoms menace the Justice League's headquarters.

In the time of the Aztec empire, tragedy strikes Yohualli Coatl when his father is murdered by Spanish conquistadors. To warn King Moctezuma and his high priest, Yoka, of imminent danger, Yohualli escapes to Tenochtitlán. There, he trains in the temple of the bat god Tzinacan with his mentor, developing equipment and weaponry to confront the Spanish invasion and avenge his father’s death. Along the way, he encounters key figures like the fierce Jaguar Woman and the conquistador Hernán Cortés.

Following a brutal series of murders taking place on Halloween, Thanksgiving, and Christmas, Gotham City's young vigilante known as the Batman sets out to pursue the mysterious serial killer alongside police officer James Gordon and district attorney Harvey Dent.