SECRET AGENT SANTA Agent Mike Becker has one final assignment: babysit a single mother known for her conspiracy theories. Except the bullets flying Claire Chadwick's way can't be dismissed. Now Mike will do anything to uncover the truth...and protect his new love. HER UNDERCOVER DEFENDER Covert CIA specialist David Martin has his orders. Keep a terrorist cell from using Terri Barnhart as leverage to get their hands on a nearly perfected bio-tech weapon. But falling for her could compromise his mission...and put Terri in danger.