Robert L. Scott has dreamed his whole life of being a fighter pilot, but when war comes he finds himself flying transport planes over The Hump into China. In China, he persuades General Chennault to let him fly with the famed Flying Tigers, the heroic band of airmen who'd been fighting the Japanese long before Pearl Harbor. Scott gets his chance to fight, ultimately engaging in combat with the deadly Japanese pilot known as Tokyo Joe.

Harry Walker, a former military pilot, works as a helicopter pilot and traffic reporter for a Salt Lake City radio station. One day while working he observes a bank robbery in progress and the kidnapping of a young woman who worked at the bank. Harry goes into pursuit which leads to an exciting conclusion.

A look at the SDU in the Royal Hong Kong Police Force - how members are selected, how they are trained, their lives, what they think, the relationships between SDU members and their friends and the pressures they face.

Despite negative psychological evaluations, Mike Wong is assigned as the captain of the SDU, a special task force linked to the Customs Department. Their mission: apprehend nasty drug dealers, led by the “Ice Queen.” To do this, Mike has to team up with customs cop Minnie. Despite their clashes, the two learn to understand each other, but not before things get bad.

Ninth film in the series titled The New Option, it once again stars Michael Wong as Stone Wong, an SDU captain who's a damn man at his job. Stone is a no-nonsense SDU trainer who must initiate young studs into their SDU world.

Fifth film in the series titled The New Option, it again stars Michael Wong as Stone Wong, an SDU captain who's a damn man at his job. Stone is a no-nonsense SDU trainer who must initiate young studs into their SDU world.

Tenth film in the 10 film series titled The New Option Hon Kin, head of the police's Organized Crime Division, has been pushed to the edge by a triad boss intent on killing him. In a fit of fury, Hon embarks on a violent rampage that ends tragically. With the very existence of the Special Duty Unit(SDU) now in jeopardy because of the aftermath, Commander Stone (Michael Wong) must make up his mind and decide on SDU's future.

Eighth film in the series titled The New Option. A crime syndicate specializing in the making of counterfeit credit cards was very active in Hong Kong and the nearby Guangdong Province. The Hong Kong police found out that the syndicate had its headquarter in the mainland. One day, Stone's daughter Ling Ling and her boyfriend Mike was suddenly back from Canada. Unknown to Ling Ling, Mike worked for the counterfeit credit card syndicate. He went on a shopping spree with Ling Ling, then handed all the things they bought over to the syndicate. However, he grew careless, leaving a trail for the police. The syndicate killed Mike. Finally, could Stone and SDU rescue the situation?

Sixth film in the 10 film series titled The New Option. Hon's sister, Bibi was crushed. She phoned Hon for help. Hon beat up the crook. Unfortunately the whole incident was captured by the CCTV and was suspended from this post. Fatso came to his rescue by forcing the crook to withdraw his complaint. Hon was re-instituted but he owed a favor to Fatso which might someday cost him dearly. Jason, son of Fatso, had employed some thugs from the mainland to swindle money out of the insurance company. The thugs read from the newspaper that the amount reported lost far exceeded the amount they had robbed. They asked for compensation from Jason. While he was negotiating with the thugs, the police and the SDU surrounded the building to comprehend the thugs. But when Lun saw Hon and Jason...

Second film in the 10 film series titled The New Option. The slim plot once again has Stone leading a group of rag-tag group of SDU recruits (is the force so hard up that they're allowing their cadets to go around with spiked and dyed hair?), while his squeeze (Suki Kwan) is working on a kidnapping case. After Suki loses her gun, her squad is taken off the case, and it's up to Stone and his boys to save the day.

Third film in the 10 film series titled The New Option, it again stars Michael Wong as Stone Wong, an SDU captain who's a damn man at his job. Stone is a no-nonsense SDU trainer who must initiate young studs into their SDU world.

Fourth film in the 10 film series titled The New Option. Hon tabled a proposal to establish an assault team to take over some of the functions of the SDU. Madam So then withheld an application by Stone to increase the budget of the SDU to upgrade their equipment. Stone of course felt uneasy about this decision. Fatso told Hon that a gang of seven criminals with heavy firearms was planning to rob a factory. To be safe, Ann ordered the SDU to standby for any emergency. The assault team successfully shot or captured five gangsters after their robbery. While they were celebrating their success, the remaining two gangsters returned and opened fire on them. The SDU then stepped in and killed the two gangsters. Madam So had no choice but to shelve the idea of an assault team and approved the new SDU budget proposed by Stone.