Ancient Aliens - Russia Declassified

Seizoen: 13 - Aflevering: 11 / 210 - Eerst uitgezonden: 17 augustus 2018 - Episode ID: 1610792

A secret alliance hidden in plain sight. Joint space missions with undisclosed agendas. Have the United States and Russia been working together from the very beginning of the Space Race--in preparation for the ultimate extraterrestrial encounter?