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.

When fighters start dying in an Internet based all-in-fighting competition the LAPD are called in. Louis goes undercover to see whether or not the fighters are being murdered

With the help of a federal agent Sammo and his fellow officers go after a gang who are counterfeiting money.

Using his status as a new and unknown member of the LAPD Sammo goes undercover to help the team root out a group of vigilante cops.

The murder of a DA leads to Sammo and his colleagues uncovering a lawyer who hires a gang to steal prosecution evidence.

A friend of Sammo's owns a restaurant. He refuses to sell to Nathan Babbott, a big businessman, and then gets attacked. To help his friend Sammo begins an investigation into Babbott. Sammo has problems trying to open a checking account at the local bank.

Terrell Parker, an LAPD press officer, sees his cousin, a rap artist shot by an assassin. His life saved only by the appearance of Sammo and Louis. Terrell tries to get himself involved in the investigation by partnering up with Sammo. Between them they uncover a CD bootlegging operation.

Winship discovers that his niece is involved with a Triad gang and assigns Sammo and Tyrell to track her down. Terrell is now part of the department.

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

Sammo's nemesis, Lee Hei, is back in the US and attempts to assassinate the mayor of Shanghai.

Sammo discovers that a legendary gangster and drugs dealer has left Colombia and come back to Los Angeles, looking for his ex-wife and son.

Sammo and Tyrell try to nail an illegal animal trading and hunting ring.

A prisoner escapes from jail and goes looking for the $3 million he and his colleagues stole 5 years earlier.

Sammo and Terrell pursue a sweatshop proprietor suspected of selling babies.

Billy Rafferty, Terrell's former partner is found murdered. Terrell and Sammo investigate the last case he was working on, working undercover at a racetrack.

A gang threatens the supermarket owned by Terrell's mum and step dad. He decides that he is going to help them out and enlists Sammo to aid him.

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.

While waiting at the airport for the arrival of his teacher, Master Reng, from China Sammo gets involved with trying to stop a gang of crazed terrorists.

Lee Hei and his daughter, Lin Pai Chin, are back in America trying to set up a big drug deal to finance their other criminal activities.

Lee Hei and his daughter continue to cause trouble for Sammo and his fellow cops. This time though they are told that if they don't catch them then their unit could be shut down.