In 2019, six years after the emergence of BTS, rival South Korean boy band Tomorrow X Together comprising Beomgyu, HueningKai, Taehyun, Soobin and Yeonjun released their debut EP, The Dream Chapter: Star. Last year, the group embarked on their first world tour, christened Act: Lovesick, including the first performance by a K-pop act at the Lollapalooza annual music festival in Chicago. Directed by Park Jun-soo, this feature-length documentary follows Beomgyu, HueningKai, Taehyun, Soobin and Yeonjun as they contend with nerves and excitement in the run up to the opening concert in Seoul. Behind the scenes footage of band members is intercut with rehearsals and concert performances to showcase the physical and mental toll on the five-piece as they travel around the world