Having peaked as a big-studio leading man, Conrad Nagel accepted a brief contract at cost-conscious Pacific Pictures in 1936. Yellow Cargo is the first of the quartet, with Nagel costarring with Eleanor Hunt as a dog-and-cat team of government agents. Their job is to halt the activities of a gang of smugglers specializing in Chinese aliens (catch that bad-taste title!), which operates under the cover of a movie studio. The film provides intriguing backstage glimpses at Grand National Studios (formerly Educational Pictures), with a few picturesque side trips to Catalina Island. The remaining pictures in the Conrad Nagel/Eleanor Hunt "G Man" series were Navy Spy, The Gold Racket and Bank Alarm (all 1937).