Guy leaves Russia and visits Chernobyl in Ukraine, where he explores the legacy of the biggest ever nuclear disaster, and the engineering solutions designed to make the area safe.

At a diamond mine in Russia's frozen north, Guy drives one of the world's biggest dumper trucks. He also drives a Dakar Rally truck, visits the Kalashnikov factory and heads east into Siberia.

In Moscow, Guy rides with Vladimir Putin's biker gang, persuades a mysterious man to let him drive his Zil limousine through Red Square, and performs an aerobatic display in a Soviet air force jet