Neil Diamond stars as Yussel in this tale of a young Jewish cantor who strives to make a career in music. Against the wishes of his rigid father and his loving wife, Yussel travels to California to play his music. Swept up by the excitement, he meets a woman who shares his dream. He grows apart from his family, and becomes confused about what he should ultimately do with his life.

When Nick Davis leaves prison after one year in solitaire, he is hired to operate forklift in a warehouse in the harbor owned by the Japanese Yakuza patriarch Isshin Tendo. The place is assaulted by the Italian Mafia leaded by Dino Campanela and Nick rescues and saves the life of Shuji Sawamoto, who is the representative of Yakuza interests in America. Shuji hires Nick to work for Yakuza and becomes his godfather in the family after his oath to join Yakuza. However, Nick is a lonely FBI undercover agent assigned to penetrate in the criminal organization. When the FBI discovers that Campanela is organizing a massive attack to destroy the Yakuza, Nick's boss Littman calls off the operation to leave the dirty work to the Italian Mafia. But the connection of Nick with Shuji and his goddaughter Yuko forces him to help his Japanese family.