A police unit from Mosul fights to liberate the Iraqi city from thousands of ISIS militants. Between 2014 and 2017, ISIS occupied the Iraqi city of Mosul. During those years, the only group to fight the occupiers continuously was Nineveh province's SWAT unit, made up of local men who had either been injured or had a family member killed by ISIS. Carnahan's Mosul is a gripping tribute to these fighters for whom the incentives were intensely personal.