The first episode focuses on his childhood in Saudi Arabia, and reveals how as a young man in 1980, he travelled to Afghanistan to join resistance against the Soviet invasion.
After the Afghan defeat of the Soviets, Bin Laden's an acclaimed Saudi war hero. But soon he's on the run and plotting an audacious plan to fly planes into targets in the US.
Ramping up operations in Afghanistan, in 1998 Osama calls for 'the murder of any American, anywhere on Earth'. After 9/11, he goes into hiding. But US Navy Seals are on his tail.