Banned from athletics for drug use Curtis sees the opportunity to still compete as his new gender swap identity Melissa, whilst falling for fellow runner Emma. Emma is bi-sexual and is drawn to both Curtis and his alter ego Melissa but, with only Simon let into the secret, Curtis/Melissa becomes the reluctant object of the sexual attentions of Shaun, Rudy and running coach Mark, who spikes Melissa's drink at a party and tries to rape her, getting a rude shock when Curtis returns. Eventually Curtis is forced to admit the truth to the other misfits and, having saved her from Mark's predatory actions, to Emma.