Jack is the brother of Hayley, who is getting married. While trying to ensure that her wedding day is perfect, Jack faces a series of mishaps and obstacles that threaten to derail the event. One of his biggest challenges is dealing with his angry ex-girlfriend, Amanda, who shows up unexpectedly and causes a scene.
Meanwhile, an uninvited guest named Marc shows up with a secret that he's determined to reveal. He also seems to have a mysterious connection to one of the bridesmaids, Dina, who is struggling with her own romantic troubles.
Adding to the chaos, Jack accidentally gives Hayley's fiancé, Roberto, a sleep sedative meant for someone else. This leads to a series of mix-ups and misunderstandings that could ruin everything.
Throughout the movie, Jack experiences alternate versions of the wedding day, each with its own set of complications. In some versions, he reconnects with an old flame named Olivia, who he still has feelings for. In others, he must deal with a villainous wedding crasher who threatens to disrupt the event.
As he navigates these challenges, Jack realizes that he must be creative and resourceful to make sure that his sister's wedding day goes off without a hitch. He learns valuable lessons about love and commitment along the way, and ultimately finds happiness in an unexpected place.
