EP 1AvailableNow playingHard NOx
Volkswagen's "clean diesel" cars seemed like a dream come true for carbon-conscious drivers -- until a fraud of staggering proportions came to light.


From crippling payday loans to cars that cheat emissions tests, this investigative series exposes brazen acts of corporate greed and corruption.
EP 1AvailableNow playingVolkswagen's "clean diesel" cars seemed like a dream come true for carbon-conscious drivers -- until a fraud of staggering proportions came to light.
EP 2AvailableBehind the lavish lifestyle of race car driver Scott Tucker lay a secretive lending empire built on tribal perks and profits from poor customers.
EP 3AvailableWhen drugmaker Valeant began to grow at dizzying speeds, investors were thrilled. But a handful of skeptics realized something was very wrong.
EP 4AvailableA trail of suspicious transactions led to startling revelations about banking giant HSBC and its ties to Mexico's deadliest drug cartels.
EP 5AvailableAn unusual heist that made headlines around the world highlights a bitter feud over one of Canada's most precious resources: maple syrup.
EP 6AvailableDonald Trump's image as a savvy businessman dazzled millions. But journalists and former associates describe an empire awash in drama and shady deals.