Mark Vincent, who's WBIS, and Quinton Mann, who's CIA to the core, have been adversaries since the day they crossed paths while on assignment, and by rights, it should have been no problem for one to shoot the other. But for some reason, neither ever does, even when it causes problems at their agencies. However, someone resents the respect they have for each other and sets out to teach Quinn a lesson, having him attacked one night on his own front lawn. Quinn is able to escape the situation, despite how badly beaten he is, but he needs a safe place to shelter in. He won't endanger family or friends. Where does that leave him? Mark answers his door one night to find Quinton barely able to stand, looking nothing like the suave spook he was used to crossing swords with. After he makes sure there's no one lurking in the area, Mark brings Quinn into his apartment and calls a friend to take care of him. Mann might be a spook, but he's Mark's spook, and no one hurts him and goes scot-free. While Quinn begins to recuperate, Mark goes after the director responsible for this situation. But will the man Mark assumes is behind the attack on Quinn be the right one? If he isn't, will Mark be able to keep Quinn safe?