In the underground racing scene, emerging racer Xiao Le spirals into despair after an accident during a race with his brother, A Chieh. His life changes when he meets doctor Hui-Hui and becomes an ambulance driver, vowing to save people with speed. However, fate complicates things as San Pao and underground racing leader Brother Ben investigate, uncovering the unexpected truth about A Chieh.
The male version of Sisters Who Make Waves. The show focuses on breaking the limit plus challenging oneself, and opening up the long-lost dream of being in a boy band for the brothers. Regarding the competition system, after three months of live-in training & subject assessment, the winning team will finally be born and make their debut in a group.