The course of true love hits a pothole when Casey and Mia have their first fight, but Casey comes up with a foolproof plan to help smooth over all disagreements. Meanwhile, Maddie inadvertently exposes a fault in her relationship with Ben, while Vicky and Joel share their unique take on resolving marital spats.

Maddie boo-hoos the fact that her birthday falls on Halloween and overshadows her special day, so Mia and Casey offer to treat her to a party at their new home. Meanwhile, Ben forgets what Maddie wants for a gift, and Joel offers him some advice on how he always handled such a situation; and Mia finds a mysterious videotape among Ben's things and wonders whether she should sneak a peek at it.