Shortly before Vladimir Putin was reelected for a fifth term as Russia’s president he eliminated his last possible rival for power, Alexei Navalny, who was imprisoned in an Arctic labour camp. The deaths, often in mysterious circumstances, of dozens of Putin's opponents have been a hallmark of his time in office. Tortoise’s Giles Whittell sets out to find out why so many of Putin’s enemies have met an early end.

Shortly before Vladimir Putin was reelected for a fifth term as Russia’s president he eliminated his last possible rival for power, Alexei Navalny, who was imprisoned in an Arctic labour camp. The deaths, often in mysterious circumstances, of dozens of Putin's opponents have been a hallmark of his time in office. Tortoise’s Giles Whittell sets out to find out why so many of Putin’s enemies have met an early end.