The super cruise ship carrying more than 6,000 tourists and staff is a walking global village and a miniature society. The tourists' worldly life, joys and sorrows, and the struggles and love of young people are all presented in a journey of sharing the same boat. Chinese navigator Ding Kai and rookie team leader Tian Yue met and got to know each other on this multicultural dream ship. In the intersection and collision with passengers, colleagues, relatives such as Wang Ziyang, Chen Anni, Fei Er, the captain and the ship doctor, they experienced twists and turns, witnessed each other's growth, and harvested beautiful love. And what they witnessed was the love and dreams, tears and laughter between all kinds of people. The legend of the vast sea and sky is not only the cruise life, but also every life on the move.