Watch Scrapheap Challenge online: Episode 6 Clockwork Cars

Jailbreakers do not pass go In round one the Young Ones and the Jailbreakers competed to see who could travel the furthest on just one wind-up charge of their clockwork cars. Lightweight Rich of the Young Ones got off to a cracking start. After peddling frantically, he just kept on going ? and going. Jailbreakers' driver Andy was left behind, slowly trundling along until he finally ground to a halt just 16 metres from the start. Round two and time for the slalom challenge. The Young Ones went first with captain Tom in the driving seat. Giving his legs a full work-out, he glided through the course, skilfully avoiding all the obstacles. They had a great run, but could they hold on to their lead after the Jailbreakers had added more rubber power to their machine? The Jailbreakers started steadily, also managing to steer clear of the obstacles. Further up the course they picked up speed and flew towards the finish line. But their final charge held them up, costing them valuable time, and they threw the round away to the Young Ones. The final round was a head-to-head race around the track. The Jailbreakers got away well, while the Young Ones were busy losing crucial seconds charging up their flywheel. The pressure was on, but the Jailbreakers' lead was decreasing as the longer running time of the Young Ones' vehicle began to pay off. And when the rubber on the Jailbreakers' machine started tangling, the fate was sealed for the prison posse. The Young Ones took full advantage and steamed into the lead. Proving that age is not an issue when it comes to bodging on the 'heap, the Young Ones go through to the quarterfinals. But the Jailbreakers do not pass go, do not collect the Scrapheap Trophy, and go straight to jail.

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