Fear of a Japanese invasion grips Los Angeles in the immediate aftermath of the attack on Pearl Harbor. The film follows a group of characters navigating the heightened paranoia and uncertainty of the era, including a young pilot, a Hollywood agent, and a group of Japanese-Americans facing suspicion. They must contend with the pervasive anxiety, the threat of enemy action, and their own personal struggles against a backdrop of wartime hysteria.

The film is noted for its unique blend of comedy and historical drama, set against the tense atmosphere of Los Angeles in the wake of Pearl Harbor. Critics have pointed to its ability to capture the era's pervasive fear while also finding moments of levity. The narrative explores the anxieties of invasion and the suspicion directed towards Japanese-Americans, grounding the story in the specific historical context. Its approach offers a distinct perspective on a pivotal moment in American history, balancing dramatic tension with comedic elements.