When Emma and Aidan decide to expand The Guesthouse at Lobster Bay by merging their two homes, Emma feels certain it's the project she needs to develop her flourishing retreat, and to keep her and Aidan together. Emma has three months to complete the project before her guests arrive for a sumptuous Christmas in Lobster Bay, but as soon as the work begins, Emma's dream of expansion begins to fall apart... Unforeseen structural problems, the arrival of a long-term guest, and an errant puppy, who is determined to chew her way through every piece of pipe and furniture, push Emma and Aidan to their limit, and it's not long before cracks begin to show in their relationship. Determined not to give up, Emma pushes on. But as the project progresses tensions continue to rise, and when a winter storm blows in, work grinds to a halt, pushing Emma and Aidan to the brink. As Emma battles to keep her dream alive, will it be at the expense of her relationship? And will she eventually, with the help of some of her friends, pull off her dream of Christmas at Lobster Bay?