In the summer of 1945, the head of the Corleone family of the American mafia, the godfather Vito Corleone held a grand wedding for his youngest daughter Connie. Vito Corleone has three sons, the lascivious eldest son Sonny, the cowardly second son Fred, and the youngest son Mike, who returned from the battlefield of World War II. Among them, Sonny is the godfather's right-hand man; while Mike is shrewd and capable, but he has no interest in the family business.
Vito Corleone is the leader of the Mafia and often engages in illegal activities. But at the same time, he is also the protector of many weak and small civilians, and he is deeply loved by people. He also has a rule, that is, never sell drugs to harm people. For this reason, he rejected the request of the drug lord Solasso, and thus intensified the conflict with several other Mafia families in New York. On Christmas Eve, Solasso hijacked the godfather's godson Tom and sent someone to assassinate the godfather. The godfather was shot and admitted to the hospital. Solasso asked Tom to try to get Sonny to agree to the drug deal and renegotiate. Sonny is brave and intrepid. He vowed to take revenge, but there was nothing he could do.
Mike went to the hospital to visit his father. He found that the bodyguard had been bought and the police had colluded with Solaro. Rush among the families is on the verge. Mike worked out a strategy to induce Solaro to negotiate with the sheriff. In a small restaurant, Mike killed Solaro and the sheriff with a pistol hidden in the toilet.
Mike fled to Sicily, where he married the beautiful Apolonia and lived an idyllic life. At this time, the vendetta among the various Mafia families in New York became more and more intense. Sonny was also betrayed by Connie's husband, Carlo, and was beaten to death. The godfather returned from his injury and arranged for reconciliation between the families. Mike, who heard the bad news, was also attacked. Fabrizio, the purchased bodyguard, put a bomb on Mike's car. Although Mike survived the disaster, he lost his beloved wife.
Mike returned to New York in 1951 and married his ex-girlfriend Kay. The aging godfather passed the position of family leader to Mike. After the death of the godfather, Mike began his long-simmering revenge. He sent someone to assassinate the leaders of two other rival families and killed Fabrizio, who had murdered his ex-wife. At the same time, he also ordered someone to kill Carlo and avenged Sonny.
All the enemies are cut off. Connie rushed into the house because her husband was killed, and frantically tore Mike. Mike grimly ordered Connie to be sent to a lunatic asylum. He has become the godfather of a new generation.
