Uncanny X-Men: Quarantine

Kieron Gillen and Matt Fraction script this single-issue Marvel story from 2011, with Greg Land on art, as the X-Men face a terrifying biological crisis. The mutant nation of Utopia is placed under strict quarantine when a deadly, unknown plague sweeps through the island, forcing the team to isolate and confront an invisible threat from within. It's a tense, claustrophobic thriller that explores the X-Men's vulnerability when their greatest enemy is something they cannot fight with powers alone.