In life, the Libyan leader ruled with an iron fist for 42 years and treated Libya's wealth as his own. He died the richest man on the planet with a fortune of $150 billion. A dictatorial leader in life, the spell of Gaddafi's money remained in place after his death, triggering a ruthless race to find his missing billions. Two journalists pick up the trail of a mysterious $12.5 billion in cash, flown out of Libya in the dead of night just months before Gaddafi's demise.