Having just returned from a mission to Mars, Commander Ross isn't exactly himself. He's slowly becoming a terrifying alien entity with one goal -- to procreate with human women! When countless women suffer gruesome deaths after bearing half-alien offspring, scientist Laura Baker and hired assassin Press Lennox use Eve, a more tempered alien clone, to find Ross and his brood. Before long Eve escapes to mate with Ross.
At the behest of Roger Dorn -- the Minnesota Twins' silver-tongued new owner -- washed-up minor league hurler Gus Cantrell steps up to the plate to take over as skipper of the club's hapless farm team. But little does he know that Dorn has an ulterior motive to generate publicity with a grudge match between the big leaguers and their ragtag Triple A affiliate.
Gwyneth Paltrow plays London publicist Helen, effortlessly sliding between parallel storylines that show what happens if she does or does not catch a train back to her apartment. Love. Romantic entanglements. Deception. Trust. Friendship. Comedy. All come into focus as the two stories shift back and forth, overlap and surprisingly converge.