I Will Finally Knock You Down, Dad!

There is an underlying story about a lazy son who knows some kung fu but mostly fakes it to show off. After being exposed he does good by improving his skills to the point where he can finally knock down his kung fu master father.

Crystal Hunt

Two cops search for a mysterious crystal with healing powers to cure a sick old man. On the trail they come up against a team treasure hunter/smugglers with impressive combat skills and big guns.