Where can I watch Das Geheimnis der Anden in United States?

The five-part television film tells the exciting and unusual story of Dr. Jansen. In the early 1970s, the lawyer and government advisor is on a secret mission in South America for his clients at NATO. There, he is unexpectedly caught up in a whirlwind of adventures involving life and death. Whether in the jungle, by the sea, or in the vastness of the pampas, everywhere he goes, he encounters people who will stop at nothing to achieve their goals.