What happens when Police Officers charged with keeping the public safe come under attack? This show features incredible footage - often filmed by cops themselves - of what they deal with on the frontline. With an officer reporting being assaulted on average every 18 minutes, and more and more incidents being caught on camera, we meet the policemen and women putting themselves in danger to protect the public...from the cops who bravely apprehended Wales' most wanted man, to the officer who was nearly killed by a man wielding a 4 foot long Samurai Sword. Experts also reveal what happens when officers in danger activate a 'Code Zero' by hitting the emergency button on their Police radio