Watch Online Free on Watchseries. Legend of a Warrior follows Corey Lee's efforts to reconnect with his father, martial arts legend Frank Lee. For his many students and fans, Frank is martial arts-a high-kicking dynamo whose style of full contact fighting has propelled him into the upper echelons of his profession. Frank is happy to play the role he's cultivated, but his son, filmmaker Corey Lee, wants to look beneath the superhero mask. To do this Corey must enter Frank's world, a world where fighting rules.