Martial Law is a 1990 martial arts action film. This was followed by a sequel in 1991 called Martial Law II: Undercover (also known as Karate Cop and Martial Law 2). Mission of Justice was released in 1992, and is considered part of the trilogy even though it is basically unrelated plot-wise. Cynthia Rothrock starred in the first two films, while Jeff Wincott starred in the final two films (but as two different characters).