Plot: In fairness, this is only really a glorified cameo from Chan, despite what the shamelessly cash-in-happy box art may suggest.
He did, however, orchestrate the few reasonable fight scenes as the titular female enforcer - played by Yuen Qiu, who studied under the same martial arts mentor as Chan - knuckle-sandwiches her way through the seedy backstreets of her overrun home city.
Trivia: A fairly ludicrous number of misleading attempts have been made to flog this movie to Chan completists, including various name changes; it was even re-released under the post-Bronx title Rumble In Hong Kong, which is about as transparent as it gets.
The only other time Chan - here seen sporting a comedy 'evil mole' - would play a ne'er-do-well is in the limping 1976 title Killer Meteors.
Check out the Total Film page on Chan's latest, The Karate Kid (2010), over here.