After their breakup, Anna and Russ find themselves navigating an unusually awkward co-parenting situation with their cherished dog, Merv, who has lost his usual energy. Determined to help Merv regain his zest for life, Russ decides to take him on a rejuvenating trip to Florida—only to be surprised when Anna arrives unexpectedly. As Merv gradually rediscovers his joyful spirit, it becomes clear that healing their dog’s heart might just ignite a few sparks between Anna and Russ as well.