The industrialist's daughter has been kidnapped by the mad inventor Ravello, but Harry Peel stays hot on their trail with the help of his dog Greif. Behind a waterfall, he discovers the hidden gate to Ravello's castle, where the fiercest of battles now break out between the two and Harry finds himself confronted with a staircase that has been electrified and, once again, with the deadly robot.
Harry Piel
Charly Berger
Inge Helgard
Karl Platen
Adolf Klein
Score: 7.5
Score: 7.1
Score: 6.6
Score: 7.3
Score: 8.1
Score: 6.4
Score: 7.3
Score: 7.1
