October 1932, Chicago.  With Capone in the slammer, other bosses are biting off chunks of Capone's empire.  One boss is Frankie Gruder, head of a group that is the forerunner of Murder, Inc.; Gruder wants control of all the Canadian imports and exports.  Gruder and his boys go to a warehouse, Gruder shoots a longshoreman.  Ness and his men show up and start blasting.  There's a shoot-out.  Gruder manages to escape.