基于真实故事，美国男孩扎克·索比赫14岁被诊断患有骨肉瘤(18岁去世)，多次手术和化疗并未遏制癌症发展，在得知自己只剩几个月寿命后，他创作了《云》这首歌，感谢自己身边的人和所经历的一切，乐观面对。Seventeen-year-old Zach Sobiech is a fun-loving high school senior with raw musical talent. But a few weeks into his senior year, just after asking out his long-time crush, Zach's world gets turned upside down when he finds out his cancer has spread, leaving him with a life expectancy of just six months. With the limited time he has left, he and his best friend and writing partner, Sammy, decide to follow their dreams and finally make an album. Little do they know, they'll soon become a viral music phenomenon. But with time running out, Zach is confronted with the reality that no matter how he spends his time, he is going to hurt the people he loves the most, including Amy, the love of his life. As Zach's health condition begins to worsen, he is left to make difficult decisions about how to spend his time and more importantly with whom. Ultimately, he discovers the best way to say goodbye is with music, and his hit song CLOUDS is born. With an unfiltered, heartbreaking, and beautiful ...