Friday, January 6, 2017: On that day, as always, John Brennan’s alarm clock was set to go off at 4:15 a.m. But nothing else about that day would be routine. That day marked his first and only security briefing with President-elect Donald Trump.

In this brutally honest memoir, Brennan, the son of an Irish immigrant who settled in New Jersey, describes the life that took him from being a young CIA recruit enamored with the mystique of spy work, secretly defiant enough to drive a motorcycle and sport a diamond earring, and invigorated by his travels in the Middle East to being the most powerful individual in American intelligence. He details his experiences with very different presidents and what it’s been like to bear responsibility for some of the nation’s most crucial and polarizing national security decisions.

Undaunted: My Fight Against America’s Enemies, at Home and Abroad offers a rare and insightful look at the often-obscured world of national security, the intelligence profession, and Washington’s chaotic political environment. But more than that, it is a portrait of a man striving for integrity; for himself, for the CIA, and for his country.