Suroosh travels to Nigeria, where he investigates the rise of Boko Haram, an obscure religious movement that transformed into a regional terrorist network.

Suroosh traces the origins of the Islamic State back to a U.S. prison camp.

Suroosh travels to Somalia, where he investigates the rise of Al-Shabaab and the group's tactics to maintain power within the country.

In the premiere of this documentary mini-series, Suroosh Alvi travels to Aden, a port city in Yemen, to investigate a thriving Al-Qaeda offshoot called AQAP.