故事以史上首个自律人型AI「Vivy」为主角,是以「歌声带给众人幸福」为使命的「歌姬」。某日自称来自100年后的AI「松本(マツモト)」突然出现,并表示自己将与Vivy共同修正历史、避免100年后人类与AI发生战争,使Vivy踏上破坏AI的旅途。。机灵活泼的穷小子小山(汪禹饰)游手好闲,又好赌,整天过着坑蒙拐骗的日子,生性顽皮,喜欢捉弄人,因此惹下连连祸事。一日,小山偶遇落魄的流浪少年凯云(刘家辉饰),凯云失去记忆,空有一身好功夫,两人成为朋友,联手把一帮坏人打得落花流水,帮助了很多贫苦百姓,闹出了诸多趣事。凯云的大官父亲带着保镖(刘家荣饰)前来寻找儿子,引出重重误会;另一方面,小山与凯云遭到那帮坏人的追杀,最后凯云恢复记忆,与小山联手把坏人一举成擒!。When their mum disappears, Tiana, Tionne, and Tanika fight to hide the truth from the outside world in order to stay together as a family. As Tiana struggles to keep their regular lives afloat, Tionne displaces his grief and Tanika tries to convince her teacher to adopt them, chaos erupts when their mum’s hapless drug dealer, Dr Feelgood, moves in.。