Courier Willy (Joseph Gordon-Levitt)'s bicycle is a modified fixededgear with a steel frame. With his car skills and sensitive reactions, he can travel through crowded streets every day. One day, a woman gave him a "very important urgent item" and asked him to deliver it to Chinatown within 90 minutes. But halfway, the police stopped Willy and forced him to hand over the urgent item. Willy, who was desperate, had to open the envelope privately and discovered an amazing secret. So, can Willy, who discovered the secret, deliver the message accurately within 90 minutes? Can his bicycle outrun the speed of police cars and gangsters?