A frightened woman is running barefoot on a highway, trying desperately to flag a car. After several cars pass her by, the woman sees another car approaching, and to make sure either the car stops - or, she's killed, she stands in the path of an on-coming car. Private Investigator Mike Hammer is the one at the wheel, and after almost hitting the woman, he tells her to get in. The woman's name is Christina Bailey.. She is obviously on the run, being barefoot and wearing nothing but a trench coat, and the scent of fear. Whoever was after her eventually catches up with them. Christina has information they want, but dies while being questioned. The killers fake an accident by pushing Hammer's car off the road, but, he survives, waking up in hospital two weeks later. As Mike starts to investigate Christina's death, he's told by the police to stay out of it, but, the hard-nosed PI proceeds anyways. Little did he know that Christina's secret would lead to death and destruction.

Jackie plays Foh, an expert mechanic who has returned from Japan after a master course at Mitsubishi Motors. He runs a small business in Hong Kong along with his father and two sisters. In his spare time, he also helps the police out by checking cars that have been illegally upgraded. One night, psychotic street racing driver Warner Krugerman, aka Cougar, speeds past Foh and the cops. Foh gets into a car and stops Cougar heroically. Cougar lands in jail, but breaks out eventually. He gets revenge on Foh by trashing his business and kidnapping his sisters. The only way Foh can get his sisters back is by racing cougar in Japan. He now must retrain himself in race car driving so he can be at his best to race Cougar.

A show in which, each week, two rival teams are given the task of building some kind of machine, in one day, using only the items found in an unusually well-stocked scrapyard. Machines constructed to date have included trebuchets, hovercraft, rockets, gliders, cannons and diving suits.