Operation Morning Light tells the true story of Cosmos 954, a nuclear-powered Soviet espionage satellite that crashed into the Northwest Territories of Canada in 1978.

The crash scattered radioactive debris across the lands of the Dene, Metis, and Inuit peoples.

A massive recovery operation, codenamed Morning Light, was deployed by the American and Canadian militaries to find the debris.

But though the mission was termed a success, in the years since, the communities in the debris field have noticed troubling changes -- mutations in fish and wildlife, and an epidemic of cancer.

This eight-part documentary series traces the rise and fall of Cosmos 954, and the legacy it left behind.