Two brothers were separated in childhood at an orphanage, only to find each other as adults 30 years later. But right after their reunion, their birth mother, who suffers from Alzheimer's disease, suddenly disappears. So Sang-yeon and Ha-yeon team up together and go on a road trip to search for her.
Cho Jin-woong
Kim Sung-kyun
Kim Yeong-ae
Yoon Jin-yi
Lee Hae-yeong
Jung Min-jin
Jo Bok-rae
Choi Tae-won
Lee Cheol-min
Jeon Ji-hak
Kim Byeong-ok
Lee Hyo-je
Park Kyung-man
Bae Je-gi