When Nature Calls: Nature vs. Science! Featuring a Gorilla that walks like a man, indoor clouds, glacier surfing, how not to feed a crocodile and a man that chases volcanoes!

Human Lab Rats: Self Experimentation! Featuring the world's best speed eater, Rollerman, a bot fly in a girls head, the incredible broken arm and the Human powered helicopter!

The People's Vote: The very best of OAS as voted for by you the viewer. We have put together your favourite clips from across all the OAS seasons so far!