“We need you back.” It was a call FBI informant and former Army sniper Joe Moore never expected to get. He’d already infiltrated the Ku Klux Klan once before, and his contributions prevented an assassination attempt targeting then-presidential candidate Barack Obama. In this book, Moore reveals the astounding true story of how he became one of the most entrenched and valuable undercover agents in the FBI’s history. This memoir recounts how he infiltrated the “Invisible Empire” at the highest levels—not once, but twice—becoming a Grand Knighthawk, overseeing security, defense, and internal communications for the domestic terrorist group across Florida and Georgia. Moore makes clear how the seeds of violence and hate spawned the tragedy in Charlottesville, the failed January 6 Capitol coup, and the growing threat posed by extremist militias.