S2, E1: London's canine cops take on the capital's crooks as the Metropolitan Police use their elite dog squad to crack down on crime. Diesel, the Metropolitan Police's Cocker Spaniel, who can find drugs, cash or guns in a "nanno-second" helps the TSG and his handler, PC Adele Gibson, raid a suspected drug den. Sgt. Pete Madden and his German Shepherd, Brodie, go after car thieves.