R | | Action, Crime, Drama
A cop goes undercover to infiltrate a deadly prison where a team of mercernaries is being assembled.
This is the first time that Jackie Chan and Jimmy Wang Yu collaborated since they appeared in The Killer Meteors (1976) and Fantasy Mission Force (1983).
An outtake reel in shown during the end credits.
Taiwanese video is 35 minutes longer than Hong Kong version and features more character development of the Taiwanese actors and bit players.