It centers on Kris Bowers and Dahi as they venture out on a musical journey across the U.S. experimenting to reimagine the National Anthem.。两月前，沈安心意外从楼梯跌下导致失明。同时她的父亲沈代山得知自己得了绝症，找到拳击手苏祁正作为保镖保护沈安心，却在签约后遭遇车祸而亡，苏祁正的好友纪南宸知晓后拿着合约和沈代山的录音冒名顶替苏祁正，成为沈安心的贴身保镖，只为查出父亲死亡的真相。