Lucy Chen and Tim Bradford - to most people, she was just his rookie. But if you looked a little closer, there had always been something more between them. What happens when a sudden undercover assignment turns everything upside down... and forces Lucy and Tim to question the feelings they've been trying to ignore? As the mission becomes more dangerous than anything they've faced before, the line between duty and emotion begins to blur.

Tim hates his birthday. This year, he was determined to ignore it. But Lucy had other plans.