Toma agrees to give protection to an underworld chieftain whose execution could trigger a gangland war and endanger innocent citizens. A powerful mobster, who is believed to have ordered the execution of a rival syndicate leader, seeks Toma's help to save his own life and prevent a major gangland war. Things have been relatively peaceful between competing "families," when underworld patriarch Gustav Petroan is suddenly machine-gunned to death by four unknown assassins, all of whom escape. Shortly after, Toma, is contacted by Petroan's long-time enemy, Alex Cordeen, who asks for police protection from those who believe he ordered the execution. Dave is persuaded to cooperate when Cordeen explains that contract on himself could trigger an all-out gangland war in which many innocent citizens might be victims.