Unbreakable: Part 3

Summary: Alone and without backup, undercover ATF Agent Ezra Standish comes online as a guide. He instinctively locks himself behind unbreakable shields to save his life. When the Center can’t train him, Alpha Guide Tony DiNozzo is called in to help. He has a talent for getting through shields and a history with Ezra that might help. The last thing Tony expected to find in Colorado was his sentinel.