紫鹤（陈天文 饰）和萧瑶（叶素梅 饰）约定退隐江湖，过离群索居的日子，然而，就在他们准备离开之时，紫鹤的师傅却将武当派掌门人的位子传给了紫鹤，悲愤的萧瑶自觉遭到了背叛，一怒之下，她创立了白莲教，与紫鹤势不两立，并与他定下了五年之约，五年后进行决战。 云飞（曹国辉 饰）的母亲被慕容家逼死，成年之后，他遇见了名为如烟（潘玲玲 饰）的女子，与此同时，云飞同母异父的兄弟天峰（陈泰鸣 饰）亦在追求着如烟。还珠爱上了善良正直的云飞，而还珠的父亲却是野心勃勃企图谋权逆反的镇南王。五年一晃眼就过去了，当紫鹤和萧瑶双双在决战中死去之时，云飞竟然成为了嫌疑最大的罪魁祸首。
一宝（马浚伟 饰）和傲蓝（杨怡 饰）是相识多年的好友，两人相互支持相互鼓励经历了风风雨雨，友情真挚又深厚。可是，随着时间的推移，傲蓝对一宝的好感渐渐超越了友情，面对傲蓝的改变，一宝的迟钝令两人在缘分的海洋中擦肩而过。 星皓（谢天华 饰）出现在了傲蓝的身边，性格相似趣味相投的两人很快就走到了一起，不幸的是，正当傲蓝沉浸在幸福中之时，星皓的前女友卓旗（曹敏莉 饰）卷土重来，在她的压力之下，傲蓝选择了放弃。一宝重新回到了伤心欲绝的傲蓝身边，替她疗伤，就在两人越走越近之时，星皓的再度出现令一宝与傲蓝的感情陷入了未知的境地。
Big Mood is a vivacious and rebellious portrayal of female friendship when infiltrated by the complexities of a serious mental illness. The six-part series will explore the messy pitfalls and idiosyncrasies of navigating adulthood through wicked humour, daft anecdotes, and unsettling truths. Best friends Maggie and Eddie have lived in each other’s pockets for ten years, through thick, thin, and multiple challenging eyebrow trends. But with the rest of their lives looming, careers hanging in the balance, and Maggie’s bipolar disorder making an unwelcome return to form, Eddie begins to question whether this friendship is really in their best interests. It’s a pivotal point in both their lives, bringing to the surface those all-important questions – could sleeping with your former History teacher be the key to happiness? Is a basement Rat Hotel a functional alternative to pest control? How do you stop your new psychiatrist giving you worry dolls? With their twenties behind them, Maggie and Eddie’s relationship faces the future – can it survive?
