26 years later, the twins' lives intersect again: Bok Min and his best friend Tarzan get mixed up with a dangerous gang, while Ma Yau prepares to conduct a major concert in Hong Kong.

As a result, a string of comedic mix-ups ensues when Ma Yau is accidentally enlisted by the gangsters to participate as an escape driver in the liberation of none other than Crazy Kung; Bok Min in turn is forced to conduct Yau's concert (which becomes a smash hit despite him having absolutely no musical talent); and the two of them end up with the other's girl as their respective love interest.

[3] The action in the film has a larger focus on actual martial arts than on Jackie Chan's usual comedic style.

Club gave a positive review, but noted that it "probably won't make anyone forget Dragons Forever, Wheels On Meals, Project A, or any number of other excellent Chan films".

[11] Some reviews critiqued the special effects, such as in Variety which noted that "the camera trickery is glaringly cheesy in some shots, greatly undercutting the illusion of twin brothers in the same frame.

[12] Writing for Sight and Sound, Kim Newman found the film's numerous cameo appearances to be annoying, stating that "few of the distinguished participants show much skill with double-take comedy".

[13] TV Guide gave the film one star out of four, noting that it "suffers from some very dicey twinning effects when the brothers are in frame together.

Chan was so soured with the results of the special effects that he decided he would only attempt more special-effect based work in his American productions.