The families get ready for the KBS Entertainment Awards ceremony and the dads prepare a surprise to farewell Bong Tae-gyu and Si-ha.

Ji-yong tries to slow down his rushed life but Seung-jae and him meet the hulk instead. An idol uncle goes all the way to Ulsan to take care of the Park kids and take them to a dentist. Sam teaches the kids how to fish.

The Lee family does winter sports training with the Ko duo. Sam tries to get William to cherish his old toys, then they visit a greenhouse. The Park family visit Busan.

Ki Yom, the puppy, finds a new home and has to leave the Lee family. Plus, they go to Thailand to visit the older sisters. William is obsessed with chocolates and watching tv. The Park family continues their trip in Busan, and Na-sun has a traumatic experience.

The Lee family meets elephants and watch a dinner show in Thailand. Na-eun attends a Korean traditional school to learn Korean etiquette. The Hammingtons visit a public bath.

The Ko duo meets up with the Shim family. Geon-hoo talks to Na-eun and discuss their differences. William meets superheroes including spider-man, his favorite.

The Lee family runs into a bit of trouble in Thailand. Jo-hoo suddenly becomes a father of three daughters. A famous grandfather meets with the Hammingtons.

Jo Sung-mo is back and holds a concert and Bong-yeon joins him. William learns to fly. Na-eun learns to bake with the help of a famous chef.

The Lee siblings, Seung-jae, and Na-eun get invited to wizarding school to learn magic. The Hammingtons have comedian guests come over. Bong-yeon visits his sick grandfather in a very emotional and touching reunion.

William gets his own phone. Geun-ho moves into his own house, and the Park family visits Busan. Jang Beom-june's family join the cast.

The Jang family survive their first night and make music together. The Shim family join the Ko duo on an educational and exhilarating trip. A colourful uncle plays with William and Bentley. It's the day of Na-eun's baking contest.

Dong-gook becomes a captain and so does Si-an. The Ko duo visit the Park family in Ulsan. Bentley and William have to get vaccinated. The Jang family visit an amusement park.

The Jang family paint at an art cafe, and then move over to his studio. Bentley sees what it's like to be an older brother, and he and William pick strawberries. Uncle Kwang-hee has another fun day planned for the Park siblings.

Seung-jae and Yi-an become skilled warriors. The Lee siblings are actors in a new drama. Willam and Bentley meet some uncles, with a whole lot of swag and then visit a market. The Park family play outside and go through a maze.

The Jang siblings have their grandmother and great-grandmother over. Ra-won comes back to the show; this time with a baby sister. The Park family gets a trampoline and take a stroll along some flowers. Sam tries to make William stop picking his nose, and Bentley gets his hair cut for the first time.

Ha-da has to get vaccinated, and the Jang family have a photo shoot. Seung-jae and Ra-won run errands together. The Hammingtons visit a kids cafe as William begins potty training. Geon-ho relieves his built up stress, and Na-eun learns about the Korean alphabet.

Si-an learns the struggles of being the older sibling but proves to be more than capable. The Jang family take a trip through Beom-june's past. The Hammingtons visit a meat market and meet with a meat expert. The Park family have a picnic amongst the cherry blossoms and bamboo trees, and have a mini sports day. Guest star(s): Don Spike

It's Children's Day, and Dong-gook prepares a surprise for the trio, and Si-an outsmarts one of his dad's pranks. The Hammingtons visit the countryside, and the elderly dote on the kids. Geon-ho finds pleasure in the little things, and the family plays in an indoor pool.

Seung-jae takes the subway all on his own to visit Yi-an's house. The Jang family continue on their trip through the past, and Beom-june treats a whole restaurant. The Hammingtons ride a raft through a river and bury a time capsule. Na-eun's class holds a flea market, but Geon-ho finds it hard to part with his favorite toy.

The Jang family continue their trip and go busking in Yeosu as they say goodbye to the show. Kim takes on the Superman challenge with his 3 kids. They join the Ko duo in a sports day with other parents. William and Bentley play in personal bathtubs, but that doesn't work so they visit an indoor water park. The Park family revisit a kids cafe, and Na-eun gets a real gingerbread house.

Hong Ra-won is back and leads the family on a grocery run. William wishes for rain as they visit a garden. The Park family go camping, and Joo-ho tries to redeem himself. Na-eun proves that she can protect her brother.

Seung-jae hands out gifts to people he's thankful for as it is his last day on the show. Plus, he holds a counseling session. Si-an wants glasses to look like an idol, but his dad has other plans. William has to protect his new pet frog from Bentley. The Park siblings enroll in a kids gym class to help Geon-ho release all of his energy, and they get very cute visitors over.

The Park family visit a fishing village in Ulsan. Moon Hee-joon and Jam-Jam joins the show and spent their first day alone together at a community center. William now obsesses over zombies and turns himself into one.

The Park siblings are in Switzerland, and a fun uncle joins them. Jam Jam makes a mess as she dabbles in skin care and plans a surprise event for her mom. Park Jung-Chul takes on the superman challenge with Da-in, who celebrates her birthday over and over again. Will and Ben get another sibling and meet up with Da-in.

The Ra-Ra sisters are back, and Ra-won learns to cook and goes on a date. William has to protect his things from thief Ben, and Sam puts them through the patience test. Kwang-hee repeatedly struggles with watching the Park sibling in a foreign country.