MAC - divorced, selfish, womanising, sexist, acerbic, charming - seems completely satisfied with his hedonistic bachelor life, until LILLY - his unhappy but determined teenage daughter – in training for the Olympic Women’s Modern Pentathlon - has a fight with her mother and moves in, bringing adolescent mood swings, a minutely organised life and a boyfriend, and Mac discovers that his daughter’s pentathlon is his pentathlon too, and if he really wants to become a better person - capable of sacrifice and able to share his home, his life and his heart again - he will have to learn 5 entirely new skills..