Assignment: Single Mom Surveillance The Military K-9 Unit series continues. Her serial killer brother's escaped-and it's single mom Zoe Sullivan who's under suspicion! Sgt. Linc Colson trusts two things: his instincts and his Rottweiler K-9 partner, Star-and certainly not the pretty face he's assigned to monitor. He's done everything to keep her from getting under his skin-now he must stop those who want to put her six feet under.