In the third episode of The Alien Series, take a look at some of the most famous, and most mysterious, cases of encounters with extraterrestrials and alien abductions. Have little green men, or maybe greys, visited our planet? Have aliens experimented on humans after abducting them, or even mated with us? Find out what you believe in this episode. Don't forget to watch Part One and Part Two, available on our YouTube channel, and listen to full episodes on Apple Music and Spotify