arrogant Whit and realises that he has truly lost her. He finds out that Whit is running the Nike River Marathon in London, and to prove himself to his uncertain friends and, most importantly, Libby and his son, he decides to run the race himself.

He receives motivation from his two "coaches", Gordon, a well-meaning slacker who is Libby's cousin and Dennis' best friend, who has made a hefty bet on Dennis succeeding, and Mr. Ghoshdastidar, his landlord, who uses unorthodox