Ji Sub is coming back home after an unsuccessful audition. Suddenly, a sound makes him stop his car. When he opens his trunk, he discovers young woman, Yeon Hee, who doesn't remember anything about herself. Who is that girl and why did she appeared in front of Ji Sub?

The series featured many firsts for the franchise, including the start of the story in a movie rather than the series proper. Ultraman Cosmos: The First Contact was the prequel to the series and took place ten years before episode 1. In it, 9-year-old Musashi Haruno encounters the being of light, Ultraman Cosmos, and befriends him as the two confront a threat to Earth.

Ten years later, Musashi, now 19 and a member of Team EYES, once again encounters the being of light from his childhood. The dark being Chaos Header has appeared and is corrupting the monsters of Earth, making them become ravenous and violent creatures that threaten humanity. Through Musashi's will to see the beasts and humans live in peace, Cosmos grants him a new power that will allow him to heal the corrupted creatures.

Rushing along the road every day with a vibrant mix of passengers of all kinds, what taxi drivers see and hear is far more varied than one can ever imagine. Retired taxi driver HO KAU (Kent Cheng) returns to the job after his son HO KA-PO (Raymond Wong) is convicted of causing death by dangerous driving. The incident has exacerbated the already fractious relationship between the father and the son. PO works for KAU after his release from prison. Before long, he has another serious road accident, in which KAU is also involved and severely injured, both mentally and physically. PO feels so guilty towards his father and comes to understand the importance of careful driving. He maintains a high degree of vigilance while driving but still gets picked on constantly by female traffic police officer KO LAI-SAM (Kate Tsui). As time goes by, the pair have gradually developed a strong attachment to each other and finally become lovers. But PO's ex-girlfriend CHEUNG HIU-MAN (Sonija Kwok) and SAM's grandmother KO LI SHUK-CHING (Lee Heung Kam) turn out to be the biggest obstacle to their relationship, leaving the pair stranded in dismay along the tunnel of love.

Kirinaka Kasumi, 28, realized her dream of becoming an elementary school teacher. But due to overwork, she was burnt out and gave up her job. At an employment agency, she meets a female staff member who offers her desirable yet peculiar jobs. At first, Kasumi hesitates doing such a different variety of jobs, but gradually finds out what it means to her.

Following the story of policewomen in their twenties and the physical and psychological interaction and training with police dogs.

Maneeyoung is a materialistic woman who plays many games with men. When she comes to realize her real love, it became a big disappointment as the younger man Ravee didn’t love her back and is in love with another woman at the same age.