just make it new one and call it karate bro.

here is a script just for the fun of it.

an african american solider landed in normady or somewhere in europe or north africa. fought ss panzer division or german afrika korp etc.

he got to know a japanese/okinawan solider. so they became the best pals after the war. they both went back to their communities. will smith learned karate from jackie chan.

will smith saw kids involved in drugs, gangs, guns or bullies in the school yard. he started a karate school to teach some ethics and helped the kids stay in school and do no drugs. and the community loved him.

karate brothers or kung fu brothers.