He's the financial mastermind who laundered money for the world's most dangerous terrorists and criminals. His operations stretched across the globe, helping everyone from Mexican drug cartels to bikie gangs hide their criminal profits. He also operated right here in Australia. He evaded capture for decades until an unprecedented international police operation, initiated by Australia, set out to take him down. With exclusive access, Four Corners takes you inside this extraordinary undercover investigation into money launderer Altaf Khanani.