Augusta Richly, the world's richest girl, wants a pterosaur, but when her father hires a villainous super-scientist to make it happen, the prehistoric creature escapes and only Super Potato can capture the winged lizard.

As the terrifying Legacy virus spreads among mutantkind, the X-Men suffer a truly heartbreaking loss. Then, when the messianic madman Magneto returns, offering mutantkind safe haven aboard his asteroid home, which longtime X-Man will join his Acolytes--and why? Secrets of Magneto's life are finally revealed as the villain's threat to mankind grows--but when the X-Men face him in a final showdown, both Magneto and Professor X will do the unthinkable!...