Jeremy Clarkson, Richard Hammond and James May bring the traveling Grand Tour tent to The Cradle of Humankind near Johannesburg in South Africa. In this show, the three hosts are forced to become special forces soldiers with an all action challenge at a top secret training base, deep within Jordan. Also in this episode, Jeremy introduces the 800 horsepower Aston Martin Vulcan to the Grand Tour test track, and James is sent to investigate an unusual form of motorsport called spinning.