Bruce Kellogg

As nuclear war fears peak, a scientist sends a team with an atomic-powered craft to find a safe habitat under the earth to survive a nuclear winter.

Chan discovers a conspiracy when a low paying gold mine seemingly starts to become profitable, and attempts are made on the owner's life. To help solve the crime, Roland Winters as "Charlie Chan" is assisted by his son, Victor Sen Yung as "Tommy Chan" and comic sidekick, Mantan Moreland as "Birmingham Brown", Charlie's chauffeur/butler.

In 1940’s San Francisco, detective Charlie Chan, his son and his trusty driver investigate murders connected with an insurance racket in Chinatown.