沙展高輝完成臥底任務多年，一直走不出陰霾。高輝被調往重案組警署警長方梓翹所屬警區，二人於查案期間逐漸磨合，建立默契。梓翹工作拼搏，難以兼顧家庭，兒子更與小混混結交而陷入危機。火鍋店老闆娘盧倩雯當年少不更事，為社團頭目羅威誕下女兒盧小寶，兩母女幸得高輝關顧。成為KOL的小寶為博出位不惜犯險，揭露毒品交易情況，漸漸步入無底深淵……為了保護摯親，高輝、梓翹當上黯夜的守護者，誓要將黑勢力連根拔起！

Exploring the polar day and night in northern Scandinavia while shedding light on the various challenges animals and plants face for survival.

Yoru is an entity who resides in a dream realm known as the Night World, where he helps children find closure to the memories they have forgotten or abandoned.

A new perspective on wildlife at night. A team of biologists and specialist camera crew explore the length of South and Central America to find out how animals have adapted to life in the dark.