Joo Yul and Tae Kang have started walking on their own. As they have grown, Joo Eun has prepared a special lesson for them. Sang Hyun is trying to prepare a surprise event for his wife with Na Gyeom. But it seems more difficult than he imagined due to a certain boy with too much energy. The Hammingtons go into the mountains to enjoy nature together. (thetvdb.com)