1998年,澳门女孩姗蒂(何超莲 饰)结识内地男孩乔明庄(此沙 饰),短暂相处后各奔东西。20年后,港珠澳大桥横跨海峡,两人历经变迁后再次重逢,四目相对,心意两相知。岁月见证了他们的等待、成长与坚持,亦见证了澳门的繁荣与蜕变。Qiao Mingzhuang and Sandy met by chance in Macau. With Sandy, Qiao experienced local customs and culture deeply. They fall in love with each other after the days spent together. They promise for next decades in St. Paul's when parting.