Among the bike couriers in New York City, no one is more determined and reckless than Wilee, an ex-law student more comfortable on his brakeless bike than in a suit. One day, a Chinese foreign student named Nima arranges for him to deliver a vital envelope across the city. Unfortunately, a crooked cop, Det. Robert Monday, has a desperate need for that envelope himself and won't take "No" for an answer. Now, Wilee finds himself relentlessly pursued by Monday and others in a situation becoming more complicated and dangerous by the minute. Together with his friends and rivals, Wilee must discover the secret of this dangerous delivery and make it through a gauntlet that will require all his cunning, daring and courage to survive.