In an effort to boost diner business, Han introduces a "condiment challenge," drawing inspiration from viral charity challenges. Unexpectedly, Max's ex-boyfriend, Candy Andy, visits, announcing his upcoming wedding and requesting Max and Caroline to bake his wedding cake. Despite Max's reservations, Caroline sees a business opportunity. The cake tasting at Andy's reveals his supportive relationship with his fiancée, Romy, causing Caroline to reflect on her past decision to end things with Andy. At the wedding, Caroline confronts her feelings, and Andy shares the failure of his business. The episode concludes with Caroline grappling with her emotions and Han's humorous attempt at another viral challenge.