The book focuses on the pursuit of the Barker gang and the deaths of Ma and Fred Barker. It provides some insight into the FBI of the era and the gangster lifestyle, but is laser focused on the Barker case. Interesting that in 1935 people still made false accusations against law enforcement and hunted to civil settlements, whether deserved or not. While the federal agents were the heroes of this tale, they did make some critical mistakes such as having an unarmed handyman clear the house after the shootout.