INTERDIMENSIONAL PARTY CRASHERS?! When the Krakoa of the timestream-entangled world of Marvel Rivals throws a Hellfire Gala, the heroes of the Multiverse assemble in the finery to wine and dine the night away. But who invited Ultron? Answer: No one - but he's not observing decorum! The living machine has set his sights on Cerebro, the device holding the archive of all mutant DNA and the key to their resurrection protocol! Can the heroes hold back his waves of drones and save the most precious relic of mutantkind? Can the heroes decide on the best course of action? And will Squirrel Girl, Jeff, Rocket and the Thing make it to the battle or just hang out at their private beach party on the Krakoan shores? All will be revealed within!