Arkas’ Prisoners. Bad luck for Sissi and Toni: Arkas also ends up on the island where the two shipwrecked people have saved themselves. The Count takes her prisoner. Once again he gives Sissi a choice: her freedom in exchange for Possenhofen Castle! While he is hiding Sissi in an old town in ruins, Toni is able to escape. Meanwhile, Franz is looking for his Sissi and comes across a submarine with Zottornik's spies. When they find out about Sissi's disappearance, the previously unsuccessful men see their chance and send out a carrier pigeon with fateful news.