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Three weeks prior to the repeal of Prohibition, Woody O'Mara (Mort Mills) prepares to eliminate brewery operator Franz Koenig (played by Hogan's Heroes' future "Sgt. Schultz" John Banner) so that he and Charlie Zenko (Luther Adler) can take over all illegal liquor activities on the North Side before it's too late. Zenko shows his "gratitude" by planting a bomb in O'Mara's car and assuming command of the entire operation himself. Ironically, Zenko himself ends up being betrayed by his own son Larry (Robert Loggia)--leaving Elliot Ness (Robert Stack) to solemnly pick up the pieces. Watch for Leonard Nimoy as a squirrelly trigger man named Packy.