The story:
20 years ago our Phantom's father apprehended a band of refuge-seeking killers who had stolen the priceless Kimberly Diamonds. The band members were sentenced to death, except for the youngest member Davo, who received a life sentence. There were no signs of the diamonds.

20 years later, the same Davo goes back to the jungle to avenge his capture and soon manages to fell the ???same?? masked man, our 21st Phantom. But further complications occur when two mysterious men appear on the scene to whisk a hapless Davo away on a forced diamond hunt...