I Love You Day is here again and the whole Bates crew gathers for an elaborate "Chivalry" themed party with food, games and amazing costumes. Before the big event, Kelly Jo and the girls decorate for the party and get caught up on all the biggest family news like Carlin and Evan's wedding plans, Trace's romantic prospect, and the exciting news that Michaella and Brandon might be moving to Tennessee! Meanwhile, the Bates boys hit the slopes for the day in a "Battle of the Brothers" as snowboarder Lawson and skier Nathan compete for the fastest speeds. Later, the love fest continues when Josie and Kelton invite their family over for a gender reveal party. When the balloon pops, will it be baby boy or baby girl!?

Carlin has the perfect dress and thinks she may have found the perfect venue! But will the wedding budget cause delays with securing the spot of her dreams? Meanwhile, Gil, Zach, Nathan, and the kids work on building the new puppy a dog house that will either be a dog house of dreams or another unfinished Bates project. Later, with Michaella and Brandon thinking about moving back to Tennessee, they check out a rental property in Norris, Tennessee. Does the couple officially seal the deal and sign a lease? And eager to share a father/daughter dance with Gil on her wedding day, Carlin's convinced her Dad to take ballroom dance lessons. But being newbies to dancing, will they both have two left feet?