Juup insists to take Korean martial arts lessons with Toa Shin. Bas, a former international champion, warns him it's too dangerous, but Juup goes on. He even wins his first training fight against Kyum Son, and accepts to fight Tao himself. Then Bas steps in. Meanwhile Max studies the notes Jucovic left about ship propulsion inspired by squid-jets. Charlotte initially refuses to help, but gets so fascinated by the challenge to use it in ship-design that she neglects lover Ad, who falls for temptation elsewhere.