Piet sails for provisions to Como port. The shipmates wonder why Stien keeps seeking excuses not to go there, until they meet Stella Struis, the bitterly estranged sister she never even mentioned. For Berend, it's love at first sight, and mutual. Piet is delighted to hear that the port is abandoned of account of a sea monster, as defeating one is the last requirement for his greatest ambition, joining the braves Pirates club. When the monster emerges and fails to sink his rowboat, it starts dawning that the monster is a scam, and foxy local Maribel, whom Piet has a fancy for, plays a dirty part, with her allegedly monster-killed father, captain Keikop.