A legendary blue diamond draws five friends on an arduous expedition to the jungles of Thailand. Things go wrong after a murder, with one friend going to prison. The friends are reunited after seven years when one is kidnapped.

• Lisa Film
• Pierre Brice
• Ernest Borgnine
• Barry Newman
• Harald Leipnitz
• Julia Kent
• Sonja Kirchberger
• Wilfried Baasner
• Christine Schuberth