It's a super-hero extravaganza, and you're invited! Be sure to grab a front-row seat when Saturnalia pulls back the curtain on the Interstellar Circus Spectacular! But there's far more to its three rings than meets the eye. Will the Circus' star acts be too much to handle for its all-new attractions: Spider-Man, the Avengers and the Guardians of the Galaxy? It's all fun and games until everyone gets hurt! Plus: The Avengers take on some of their all-time greatest foes! We're talking bads as big as Red Skull, Loki, M.O.D.O.K., Doctor Doom, Attuma and…Dracula! Who's more powerful, Earth's Mightiest Heroes, or its vilest villains? There's only one way to find out — fight!!!