Tennis Balls, Doughnut Dunking & Cars on 2 Wheels

Australia's all-time greatest record breaker tries to catch the fastest tennis ball ever, at over 200 kph. An American daredevil dunks a doughnut in a mug of coffee via a bungee jump, and Britain's best stunt car driver Alastair Moffatt, returns, aiming to drive a car on two wheels around cars driven by his entire family. In the bunker, the Officially Competitive legends attempt to become the world's fastest at running with a balloon between the knees.