Kate and her eight go on their annual summer vacation trip, this time to New England states. Part of their trip includes a stop at Plimoth Plantation in Massachusetts and then they head to Maine.

The Gosselins continue their New England summer adventure in Maine, by going lobster trapping, and a day at the beach, followed by their traditional ice cream dinner.

Cara and Mady are almost fourteen and have decided they each want their own room. So Kate has to figure where to put her six younger kids, to accommodate the twins.

Kate has a yard sale, to clean out unused clutter in her house, with the money going to a local animal shelter. Kate states in this episode that she does not put prices on her items, leaving it up to the buyer to decide on what they want to pay. Later on Kate and her eight celebrate the twins' fourteenth birthday.

Kate answers viewers questions and looks back on past episodes, going back to the two original specials and Jon & Kate Plus 8.

Kate and the kids take a trip down south to Mexico for Kate's 40th birthday.

The Sextuplets turn eleven. This year's birthday is spent overnight at a hotel, with each of the six inviting one friend each, including Cara and Maddy, makes for a total of fourteen kids, plus a friend of Kate's. The birthday plans also include going to a roller rink, eating a local pizza restaurant, followed by a few different cakes, designed by the sextuplets.