Let's Get Tough.

The gang decides to enlist in order to "kill a million Japs" Rejected by the Army, Marines, and Navy for being too young, the punks help the war effort by throwing fruit at a shop they believe is owned by a Japanese American. Their father figure tells them they should be ashamed of themselves as Keno, the owner of the shop, was Chinese, an ally of America and that Danny should be especially ashamed as his brother is in the service. The boys discover that Matsui is in league with German residents of the neighborhood who are in a sabotage group called the Black Dragon Society.