Jack Campbell is a successful, single investment banker who lives a fast-paced life in New York City. One Christmas Eve, after a strange encounter with a mysterious man in a convenience store, Jack wakes up to find himself living in an alternate reality where he is married to his college girlfriend, Kate, and they have two children. Instead of his lavish city life, Jack is now a middle-class tire salesman in suburban New Jersey. Initially bewildered and frustrated by this drastic change, he struggles to adjust to his new life filled with family responsibilities and a different set of priorities.

As Jack begins to navigate his alternate reality, he learns the value of love, family, and simpler pleasures. The jarring contrast between his former life and his new one forces him to re-evaluate his definition of success and happiness. Through various experiences with his "new" family, Jack discovers emotions and strengths he was previously unaware of and starts to appreciate the deep connections he had missed out on. His journey leads him to question whether his former, ambition-driven life was truly fulfilling and if what he really wants has been right in front of him all along.