| Episode | Summary |
| 1 | Boyfriend talked on what concept it will be for this season and they come up with a concept of a child having a talent in which they will have to nurture it until the end of the episodes and perform it together. This first mission, Boyfriend's mission is to find those hidden hints in a wide park in the night and used those clues to identify the unidentified hints to get closer to the 3 babies. |
| 2 | Boyfriend went to their house first to welcome their babies, they decorated the house with a child's eye-leveling and prepared an instrumental performance for baby's first step in their house. Donghyun, Youngmin and Minwoo cooked for the family and put an effort to make their babies smile, but it turns out a crying babies. While, baby SiEun's mother decided not to continued the recording for her, because she thinks that SiEun is still young to take on this situation. This will be the last appearance of SiEun in this season of Hello Baby. |
| 3 | Boyfriend will perform a television musical featuring the acting skills of the baby Ilayda and Jeongmin, challenging their virgin kiss scene, and Kwangmin, Youngmin and Minwoo will also reveal their looks that are even more feminine than females, that making fans’ hearts flutter. Together with Ilayda and Jeongmin they put a performance with their debut song Boyfriend and their hit song Janus to nurture the talents of the babies in dancing and singing. |
| 4 | Boyfriend is challenging to transform themselves as a band. They’ll do a collaboration with KBS 2TV ‘Top Band’ Season 1′s winner, TOXIC, for Transforming Into a Band Project. Boyfriend will have 3 vs 3 free style dance battle as TOXIC does the performance. Donghyun also will reveal his split dance while stretching out. There will be a situation when they lost the babies while going to the amusement park as well. |
| 5 | Boyfriend went on foot to Myeongdong to give free hugs to fans. During the free hug event, fans were asked to vote for their favorite member. The member who won the most amount of votes was none other than Minwoo. After the free hug event, Boyfriend also put on a mini concert for fans by singing hit tracks “I Yah” and “Janus” while toddlers Baby Jeongmin and Baby Ilayda also danced on stage with their daddies. |
| 6 | Boyfriend have to create their own TV shows as the babies refuses to do filming that day. Kwangmin,Jeongmin and Donghyun reveal their secrets to everyone. They're playing a game which is called as "If you curious,give me 500 won." |
| 7 | Boyfriend reveal their after awake faces with is totally cute and make those fangirls' heart fluttered. They're also playing games with the babies such as "Get out of room". It's bonding time with the family and it's called as sharing bitter and sweet but Youngmin a bit upset as there are no girls with them. |
| 8 | Boyfriend family are meeting with 2 child stars namely the Little Psy 'Hwang Min Woo' and Giant Girl 'Kim Soo Jung'. They invited the two child stars to act as a teacher for the two babies in the field of acting Kim Soo Jung and dancing. Hwang Min Woo as a dance instructor today, gives the babies a dance lesson with first song of Sistar's Alone, K.Will's Please Don't.. and Psy's Gangnam Style. Kim Soo Jung's acting class first lesson is the four stages of expression in acting. And Boyfriend's special mission show a delicious expression while eating spicy tteokbokki, bundaegi and blue cheese. And the last mission for Boyfriend is to obtain the gift of TV for their babies because they still don't have a TV in their house so to be able to do that, the Team Ilayda's challenge is to stack a 10 screw nuts on top of each other within one minute and the Team Jeongmin's challenge is to pass 10 tennis balls using their mouth within one minute and the Team Jeongmin get the gift of TV for baby Jeongmin. |
| 9 | Boyfriend family are going on a camping trip. Before they go, they decide to play a game to see who will be the one to pack everything. They have Kwangmin and Youngmin do a competition to see who can put more clothes on. Team Jeongmin won, and Jeongmin from team Ilayda was the one who has to pack the clothing, tents, etc. When they depart for their camping trip, they find out the mothers of Ilayda and Jeongmin will not be going with them. Ilayda is upset, but states that if she cries she won't get presents from Santa. The Boyfriend dads also states this is their first time traveling together since debut. Also, the staff informs the dads that they have interviewed Ilayda and Jeongmin, and they didn't know their dads names even after 3 months. Kwangmin and Youngmin are both called "Twin appas". They try to teach and quiz them on who is who. A little singing session is then started and they make their own Hello Baby song. Eventually they reach a rest stop and buy snacks for the kids. Also, they try a prize game. Kwangmin tells them it's not possible, and if they get a prize he'll walk all the way to YangPyeong. They succeed and Kwangmin has to walk. It took him 30 minutes, but he eventually found them eating at a restaurant and joined them and was let back on the car. They get to their destination and Ilayda team has to set up their campsite while the Jeongmin team goes sledding. However, while getting their boots and other heavy clothing on, Ilayda falls and Minwoo has to use the emergency bag in order for Ilayda to stop crying. While sledding, Donghyun goes to check to see if it's safe, but before getting to the top he falls, and slides the whole way down. Youngmin tries also, but ends up falling as well. Jeongmin says he wants to try to sled, and while Donghyun is helping set it up, he falls again! After a second attempt the pair finally safely sled down. (Following with one more fall by Donghyun.) Minwoo asks Ilayda if she wants to go sledding, but she starts crying again, because she's scared. Eventually they stop sledding for Ilayda's sake. The tent is eventually put up. When the Jeongmin team returns, they suggest that they should fly kites since it's windy. They split up once again into teams. Minwoo watches the kids, Jeongmin and Kwangmin chop firewood, and Hyunseong, Donghyun, and Youngmin prepare the kites with baby Jeongmin. The firewood pair has some struggles at first, but then finally manages to chop enough wood. The kite trio prepares the kites and draws on them. When the firewood and kites are all finished they get back to the camp and fly the kites. All goes well until the kites fall/go into trees. They then go back inside and try to figure out what to do next. The thing that comes to their mind is food, so they came up with a game. The dads that the baby's don't know will have to do the cooking. Jeongmin is able to point out Minwoo dad, Jeongmin dad, and Hyunseong dad, but when one of the twins pictures comes up, the episodes ends, leaving you with a cliffhanger. |
