Sara and Jonathan meet in a department store during the Christmas season when they both want to purchase the same unique pair of gloves. They hit it off immediately and spend the evening wandering around the city together, sharing their hopes and dreams. However, they both decide to leave their future up to fate and allow the universe to bring them back together if they are meant to be.
Over the next few years, they both move on with their lives and enter into serious relationships. Sara becomes engaged to an uptight businessman, and Jonathan starts a relationship with a sweet but slightly neurotic musician. Despite being in love with their respective partners, both Sara and Jonathan still think about each other and wonder what could have been.
Sara decides to take a trip to New York City to seek out Jonathan, while he tries to track her down in San Francisco. Their paths finally cross again when Sara visits a restaurant Jonathan recommended years ago. However, their reunion is brief as they both still feel a sense of obligation to their current partners. They part ways, but their brief encounter reignites their passion, and they each wonder if they missed their one chance at true love.
In the end, fate brings them back together once again, and they realize that they were meant to be together all along. They leave their current relationships behind and run towards each other in the snow, finally reuniting in a passionate embrace. They both realize that serendipity played a significant role in bringing them together and vow never to let each other go again.