Annie Knight has her work cut out for her as the McGregor family's newest nanny. Dr. Ian McGregor means well, but the distracted single dad's lost touch with his four kids. The new nanny brings much-needed calm to the chaos, including finding a service dog that could be a real lifesaver. And soon the good doctor's making Annie's heart respond in ways it hasn't for years. But Annie's cheery demeanor hides a heart-wrenching secret that's as much a part of her as her carefully hidden scars. Annie doesn't think she deserves happinessbut Ian and his kids will show the caretaker that with the love of family, everything's possible.