Emma is a hyper-efficient corporate events planner with no time for love – until her sister Miranda reveals that the wedding of her dreams is in six weeks and she has last-minute work travel plans. Emma agrees to step in and plan it herself, with the assistance of Brett's Best Man Liam, with whom she had a disastrous blind date years before. Finding common ground is difficult, but as they stand in for their friends' love, they realize they may be making room for their own.