Workaholic Rachel (Kristen Bell) is surprised when her estranged father (Kelsey Grammer), who's also a workaholic, shows up unannounced. She's even more surprised when she's left at the altar. Rachel and her dad get drunk and she invites him on her Caribbean honeymoon cruise. She discovers to her horror what she's done the next day and the two depart on the cruise, with Rachel harboring a lot of resentment towards her dad. Over the course of the trip, Rachel slowly begins to understand her father, who is trying to make amends for what he did.