Sammo's comes to America to find one of his colleagues from China who has disappeared whilst infiltrating an international car theft ring. Sammo ends up taking part in a cop exchange programme between USA and China.

Sammo uncovers a diamond counterfeiting and smuggling operation ran by a major Chinese criminal, Lee Hei.

Sammo and Tyrell go undercover to infiltrate a gun-smuggling operation run by prison inmates.

During a robbery at Melanie's bank she ends up as a hostage and is kidnapped. Sammo is desperate to find her and save her from danger.

A corrupt councilman demotes Sammo and Terrell. Meanwhile, a gang war erupts, wrecking the plans of an L.A. mobster who wants to bring a pro-football team to L.A.