In the second show of a two-part special, Jeremy Clarkson, Richard Hammond and James May are battling across Namibia in a quest to prove that beach buggies are brilliant. Having survived the challenges of the desert, the trio must now brace themselves for even greater hardship involving rough roads, camping, rhino conservation and a rather unusual river crossing.

The Grand Tour travelling tent arrives in Nashville, Tennessee from where Jeremy Clarkson, Richard Hammond and James May introduce their attempt to save the world's coral reefs using only a selection of car body shells and some extremely inept boat driving. Also in this show, Jeremy finally indulges his series-long Alfa Romeo obsession with a test of the new, 500 horsepower Giulia Quadrifoglio and AC/DC singer Brian Johnson comes to the tent to try his hand at Celebrity Brain Crash.