Marvel's youngest team of super heroes returns for more awesome action, family fun and Snark-stomping adventures - and this time they've brought some very special friends! Hot on the heels of for four fun-filled, all-ages solo adventures, everyone's favorite super-powered siblings team up with Marvel's merry mutants, the X-Men! It features Wolverine, Beast, Nightcrawler and Cyclops! Then, Power Pack returns for another titanic team-up - and this time, it's Earth's Mightiest Heroes leading the charge - featuring Captain America, Iron Man, Spider-Man, Spider-Woman and more! This title contains: "Power Pack", numbered 1-4; "X-Men and Power Pack", numbered 1-4; and, "Avengers and Power Pack Assemble!", numbered 1-4.