Steeling himself to have his right testicle surgically removed, Jack joins Kate as they investigate the abduction of Gemma G, from pop band Candy Crew. A ransom is paid but Gemma is not released. As the group's fortunes soar due to the surrounding publicity, Jack suspects an inside job and is proved partially right when the band's manager Richard is murdered. In a showdown at a greyhound track, Jack rescues both Gina and Kate from the kidnapper before undergoing his operation. He is visited in hospital by Kate - will she stay on as his partner or return to Bristol with Dan?