Tobin Frost is the CIA's most hated and dreaded traitor. After escaping counter-espionage for nearly a decade, he resurfaced in South Africa. When his hiding place in a Cape suburb is attacked by a mysterious commando, a young "blue", Matt Weston, is forced to flee alone and drive him to a new secure residence. "Guardian Angel" in spite of himself, Matt sees this mission as an unexpected chance to prove himself in the eyes of the Agency. A precarious relationship is established between the beginner and the hardened renegade. But Frost, a born manipulator, has a few surprises in store for his candid protector ...