洪彪（黄新 饰）、洪豹（郭峰 饰）设下诡计想要吞并赌场，其阴谋被千王罗四海（谢贤 饰）识破终未能遂愿，两人因此对罗四海怀恨在心，想要找机会将他彻底除掉。谭升（任达华 饰）是交际花谭小棠（汪明荃 饰）的弟弟，某日，他因在赌场出千被罗四海抓住，谭小棠出面为弟弟解围，就此得以同罗四海相识，两人之间产生了真挚的感情。 洪彪一行人收买了北方千王卓一夫（杨群 饰）想要陷害罗四海，哪知道罗四海和卓一夫不打不相识，成为肝胆相照的兄弟。遗憾的是，卓一夫和罗四海最终未能逃脱敌人的魔爪，于是，两人决定将毕生绝学传授给谭升。
金洙成（曺圭贤 饰）是一位拥有超高智商的程序员，在公司里，他所带领的项目组负责开发机器人大脑中负责恋爱和感情的这一部分。一直以来，金洙成都默默的喜欢着美丽温柔的同事禹奉顺（尹邵熙 饰），只是他选择将这份感情默默的埋藏在心底。 一天，禹奉顺意外晕倒，金洙成将她带回家照料，哪知道竟然意外的在禹奉顺的脖子后面发现了电子芯片。原来，禹奉顺竟然是一台人工智能机器人，而这台机器人的发明者不是别人，正是金洙成自己。这个意外的事实让金洙成陷入了纠结之中，因为他知道，如果触发了禹奉顺脑内的恋爱系统，那么禹奉顺就会因为程序不兼容而当机。
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?
作为演艺界代表前辈偶像的两人将与K-POP偶像后辈嘉宾见面，不分领域，围绕多种主题展开尖锐的口才对决。
