A group of people from different backgrounds have one thing in common: when they hear the world "gumball" whispered by one of the others, they know that it's time for the Gumball Rally: a no-holds barred, secret, winner-take-all rally across the USA.

When fellow operatives (and childhood friends) Matthew Johnson and Melvin Johnson disappear during an undercover mission in Hong Kong, Cleopatra Jones (Tamara Dobson) travels there to find them. With the help of local detective Mi Ling, Cleopatra discovers that her friends' disappearance has to do with The Dragon Lady, a much-feared blonde "lipstick lesbian" who runs a Macao casino and controls a major chunk of the local drug trade

还记不记得伴着我们长大的那部飞狼，那部霹雳游侠？ 那架黑色的直升机，那辆黑色的汽车。给了我们多少欢乐。 警官麦克朗在一次执行任务中被子弹击中头部，醒来后发现自己竟然变成了一个陌生人的模样！不仅如此，他的身份也完全改变了。救活他的是政府立法基地的戴文，戴文告诉他：麦克朗已经死了，代替他的将是麦克奈特！并且将一辆独一无二的汽车交给他，从此，世界上多了一位专门惩治逃避法律制裁的罪犯的——霹雳游侠