This film is adapted from a true story of a teenage boy named Wang Xinyang. His life changes completely because he contracts leukemia suddenly. Facing the uncertain future, he remains optimistic and strong as well as strives to realize his youthful dreams....

大樂又搞砸了結婚紀念日！ 今年是第六年，琪琪發現自己懷孕，又面臨工作升遷，決定不再對粗心的大樂寬容。 此時，神秘的計程車司機出現，將大樂載往另一個平行時空。大樂這才發現，自己必須彌補做錯的一切之後，才能回家...... ...