展瀚韬（马德钟 饰）是飞虎队的指挥官，在他的带领下，飞虎队一众精明强干的队员们屡创佳绩。随着时间的推移，俞学礼（罗仲谦 饰）和庄卓源（梁烈唯 饰）等队员门熬出了头，升级成为师兄，肩负着教导后辈为他们做榜样的重任。 巾帼不让须眉的女队员苏文强（黄智雯 饰）实力十分强悍，令人刮目相看。在一次行动中，凶恶的绑匪挟持了人质，令飞虎队员们没有想到的是，绑匪提出了一个奇怪的要求——见一位名叫钟韦恩（钟嘉欣 饰）的情报科女探员。然而，令众人头痛的是，钟韦恩失踪多时，没有人知道她的下落，气氛一下子变得紧张起来。好在钟韦恩及时出现，解救人质的行动最终以成功告终。
天生好胜的麦一敏（蒙嘉慧 饰）被公司裁员后，无意中发现“结婚时专门侍候新娘”这个行业工作简单兼收入可观，便一心向金牌大妗姐庄思甜（李司棋 饰）拜师学艺，为人执着的思甜看穿一敏的动机，当然将她拒诸门外。一敏死不瞑目，出尽法宝博得思甜的弟弟庄思齐（麦长青 饰）及其太太司徒菲菲（田蕊妮 饰）的好感，让她在他们开设的婚纱公司任职统筹。 当一敏积极展开她的鸿图大计时，摄影师夏天生（郑嘉颖 饰）突然出现，令她重新反思自己的人生，他们在工作中经历着欢喜冤家、落难夫妻、神经质新娘、残障情人等等不同新婚人士千奇百怪的爱情故事，从婚礼的开始到结束，二人共同迎接及见证一个个或庄严或感动的盟约，纵然二人深爱对方，但各走极端的人生态度却令这段情荆棘满途……
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?
