Bruce Lee has just died, but the BSI is swinging into action to salvage the situation. Aided by the brilliant Professor Lucas, cells from the martial arts master's body are removed and grown into three adult Bruce Lee clones. After undergoing training to bring their skills up to the level of their 'father', the three are sent out to battle crime, with one sent to take on a gold smuggler, and the other two teaming up to shut down an evil mad scientist.

Kim Dong-soo is trying to escape with a list of compatriots who support independence, but is ambushed by a Japanese Sabroo, which takes away the theater and cuts off his son Eung-beom's three fingers. Eung-beom hones his orthodox martial arts with the help of Master Baegun. And he creates a new martial art unique to Chil Ji-soo and grows into a terrifying, high-skilled martial artist. Eung-beom, who has been taught his martial arts, descends in search of his homeland and his father's enemies. Eung-beom goes through all sorts of trials to punish Sabroo, a vicious Japanese. Meanwhile, he meets Kyung-ae, a Korean woman who works as Sabro-oh's henchman. In a confrontation to eliminate Sabro-Oh's subordinates one by one, when Eung-beom is put in jeopardy due to a cunning scheme, her Kyung-ae provides dramatic help. Eungbeom escapes from crisis and becomes angry and punishes his parents and enemies of the nation.