B 501, a newly developed controller for missiles, has disappeared despite the strict surveillance. Phillippe Tissout is sent by his boss to Paris to take over the case.

• Wiener Stadthalle-Station Betriebs-und Produktionsgesellschaft
• Bavaria Film
• Pierre Brice
• Heinz Drache
• Daliah Lavi
• Terence Hill
• Jana Brejchová
• Charles Regnier
• Walter Giller
• Gustav Knuth