There's a commotion in the housing estate, and Conor and Jock discover can-trailers - tearaways from other estates with open paint cans tied around bikes intent on destroying the rival estate. The lads stop their rivals, but the encounter leads to an argument and Jock is challenged to a boxing match - which he reluctantly agrees to. The duo soon discover his prospective opponent is a champion fighter, meaning Jock has to embark on an extensive training programme in order to sharpen his skills for the bout. Chris Walley, Alex Murphy and Hilary Rose star