True Blue K-9 Unit, tome 4 : Deep Undercover

A dangerous undercover assignment...

To take down a serial bomber, NYPD K-9 officers Brianne Hayes and Gavin Sutherland must go undercover—as a married couple. But now the bomber is targeting them to halt the investigation. As the clock ticks down, can Brianne, Gavin and their K-9 partners find the culprit in time to save the city—and their own lives ?