Dark Deceptions (An A-Tac Series Book 1)

A-Tac is an elite CIA unit masquerading as faculty at an Ivy League college. Brilliant, badass, and seemingly bulletproof, the members of A-Tac are assigned to the riskiest missions and the most elusive targets.
TORN BETWEEN DUTY AND DESIRE
Covert operations expert Nash Brennon has spent the last eight years trying to forget Annie Gallagher, his former field partner and the only woman he ever loved. Annie betrayed him when he needed her most, then vanished without a trace. Now suddenly she's back in the game - this time as a suspected traitor and threat to national security.
Annie's son has been kidnapped by political terrorists. The price for his life? Assassinate a UN ambassador. When Nash and his group find her, the smoldering passion between Annie and the man she swore she'd never contact again blazes out of control. But can Nash trust her? The stakes couldn't be higher: Their enemy's endgame is personal, and one false move could cost them their lives.