New series. Jeremy Clarkson, Richard Hammond and James May are in Russia as the motoring magazine returns, taking part in a race across the urban landscape of St Petersburg. James defends the honour of the car in a very small Renault, Richard tries to prove that pedalling is faster by riding a bicycle, while Jeremy attempts to demonstrate that water is the quickest way across town by piloting a hovercraft. To make matters more complicated, all three presenters are racing not only one another but also the Stig, who is making his way toward the finish line by public transport. Plus, the new Lamborghini Huracan is put through its paces and a celebrity takes to the test track for Star in a Reasonably Priced Car.