On her wedding day, Cecilia Hale is humiliated when her fiancé Milo Wade asks his ex-girlfriend to serve as the wedding officiant. Her 60-years-older self travels back in time to warn her to choose the person who loves her the most. Cecilia resolutely calls off the wedding and accepts the proposal of Hayes Hale, who has had a secret crush on her for ten years. After marriage, Hayes becomes a doting husband. The two go through family tests and ex-partner entanglement, and finally welcome their beloved child. The elderly Cecilia also gains a happy life as her life path changes due to her new choice.
