It stars Sammo Hung, Charlene Choi, Gillian Chung, Wu Jing, Yuen Wah, and Jess Zhang.

The film is a bit of a spoof of the popularity and success of the Twins and leaves the audience with a cliffhanger ending.

An evil gang of twins hold up a train to steal a magical Tibetan artifact, the Heaven's Bead from 3 Lamas.

A secret mission takes place, in which the good twins infiltrate a high rise building in order to recover the item.

Happy, Lilian's sister, who is suffering from cancer is also kidnapped and held prisoner in the high-rise building.