Chicago, the thirties. The era of the prohibition, of Al Capone, shady politicians and untouchable federal agents under the leadership of Elliot Ness. Sammy and his boss, Jack Attaway, are "gorilla's", bodyguards for hire, who put their experience and their machine gun at the disposal of whichever client for a fistful of dollars. The only condition is that he must be honest and pay well. It is understood that this puts them in the perfect spot to be showered with bullets or to be rained upon with grenades, to the great delight of their readers who explode with laughter.