On a colonizing spaceship bearing the last evacuees of a plague-ravaged Earth, veteran mechanic Clay Young (Bruce Willis) finds himself stuck apprenticing connected young stowaway Noah (Cody Kearsley). The kid might prove to be his only chance--and that of all souls on board--against the attack of an invading, and swiftly replicating, alien symbiote. Sci-fi stunner also stars Thomas Jane, Rachel Nichols, Johnny Messner, Kassandra Clementi. 89 min. Widescreen; Soundtrack: English.