Spy Games — Sidney Bristol

Haunted by the mistakes he made while fighting for his country, Rand Duncan has become the CIA's go to man for tough jobs in an effort to atone for his sins. Late-night phone calls and covert meetings are the norm. Until she arrives and his past crashes into his present.

Sarah Collins never thought she'd see her brother's former best friend again. But one of Sarah's fellow undercover informants has been captured and the briefcase containing the identities and locations of twelve other operatives are in Chinese hands. If Sarah and Rand can't retrieve the documents, people will die.

The shock wears off quick as the two must figure out how to retrieve the briefcase before it can be opened or sold. If they want to save lives, they must confront their past, while avoiding an enemy that will stop at nothing to crush them.

Each book in the Tarnished Heroes series is STANDALONE:
* Spy Games
* Assassin Games
* Traitor Games