When a cure is found to treat mutations, lines are drawn amongst the X-Men—led by Professor Charles Xavier—and the Brotherhood, a band of powerful mutants organised under Xavier's former ally, Magneto.
Professor Charles Xavier and his team of genetically gifted superheroes face a rising tide of anti-mutant sentiment led by Col. William Stryker. Storm, Wolverine and Jean Grey must join their usual nemeses—Magneto and Mystique—to unhinge Stryker's scheme to exterminate all mutants.
When an entire town in upstate New York is closed down by an unexpected snowfall, a "snow day" begins when a group of elementary school kids, led by Natalie Brandston, try to ensure that the schools stay closed by stopping a mechanical snowplow driver by trying to hijack his plow truck. Meanwhile, Natalie's big brother Hal is using this day to try to win the affections of Claire Bonner, the most popular girl in his high school, while Hal and Natalie's father Tom, a TV meteorologist, faces off against a rival meteorologist for weather coverage of the day's events.