Young Yuichi (Kayama) romances Sumiko (Hoshi) while helping out at his family's restaurant, singing in a band, and preparing for an important boxing tournament.

Maruyama, a day laborer, is living on an abandoned ship at the port of Osaka when he meets an elusive man offering a job.

Young Guy (Kayama) competes in an electric guitar competition and plays American-style football.

Following the opening of a Japanese auto factory in Sicily, the head of the company is kidnapped by Sicilian mobsters. This was a co-production between Italy and Japan's Toho Studios.