After a successful debut that saw TOMORROW X TOGETHER (pronounced "tomorrow by together") take over the airwaves, the group are preparing to embark on their first world tour in TOMORROW X TOGETHER: OUR LOST SUMMER - a behind the scenes documentary. In 2019, TOMORROW X TOGETHER made a splash by becoming the first K-pop group to enter the U.S. Billboard 200 chart with their debut album. In TOMORROW X TOGETHER: OUR LOST SUMMER, viewers get to see band members SOOBIN, YEONJUN, BEOMGYU, TAEHYUN, and HUENINGKAI reunite in preparation for their international tour and some of the world's biggest stages, including Lollapalooza.—Disney