Carrie Burns has a successful business, a young son, Oliver, and an energetic Jack Russell terrier. She doesn't have time in her busy schedule for her ex-husband and his talk of working together again. But when she runs into Lance in the dog park, their lives are turned upside down. Lance Donovan wants to promote his fledgling construction company by helping his brother Caleb with a big condo conversion. Lance even knows the perfect interior designer to make this project a success—his ex-wife, Carrie. But after a fateful meeting at the dog park, Lance finds himself not only petsitting both his brother's dog and the beloved Jack Russell terrier he had to leave behind in the divorce, but babysitting a young son he never knew he had while his ex-wife tries to get back into dating. How did life get this crazy? Lance is determined to win back the love he thought he'd lost—but he's going to need a lot of help from his furry friends.