Dan decides to join Brian on his early-morning running club, where he meets fitness guru and leader Dominic, a man with an hypnotically rotund rear end and a powerful secret.

Brian introduces Dan to a fitness guru with a secret so unbelievably powerful that he can only tell it to one person at a time - although it's another incredible attribute that keeps Dan completely mesmerised.

Unexpected visitors in the classroom and the most extreme of wake-up calls from his dad also stand in the way of this man getting his life back on track.