"For the first time, we are able to show full details of the excavation of a hidden tunnel, sealed and forgotten for 1,800 years, beneath a pyramid in Teotihuacan, Mexico. The ongoing excavation is producing a flood of discoveries that are not only shedding fresh light on the religious and intellectual life of the people who lived here, but also radically changing the way we think civilization began."

Detective Investigation Files is a Hong Kong crime investigation drama series that features five different cases.

Tulyana is a tomboy who got dumped by her girlfriend three times, so she decides to fall in love with a man instead. Her senior, who works in the salvation army, is the one who awakes the girly in her, so she decides to flirt with him. It's not easy when he thinks of her as a sister, but she won't easily give up.

Methakawin is a new executive of the aquarium and Tulyana's new boss. They both have a problem with each other; she stole his girlfriend in the past. Their love triangle starts to become complicated at the aquarium.

The story's main character Mariko is a woman studying child welfare in Hokkaido. She grew up always doubtful about the love from her mother, who looked nothing like her and who passed away 9 nine years ago. One day, she finds some of her mother's belongings at a relative's house, and she heads to Tokyo to seek out the truth behind her birth. Meanwhile, Futaba is a college student living in Tokyo who is focused on her band. She gets an opportunity to appear on television, though her mother is strongly opposed to it. Naturally, Mariko is shocked when she happens to see Futaba on television, since the two of them look completely alike. ~ Tokyograph

The Cowherd and the Weaver Girl is a Chinese folk tale. The tale of the cowherd and the weaver girl is a love story between Zhinü (織女; the weaver girl, symbolizing the star Vega) and Niulang (牛郎; the cowherd, symbolizing the star Altair). Their love was not allowed, thus they were banished to opposite sides of the heavenly river (symbolizing the Milky Way). Once a year, on the 7th day of the 7th lunar month, a flock of magpies would form a bridge to reunite the lovers for one day. There are many variations of the story. The earliest-known reference to this famous myth dates back to over 2600 years ago, which was told in a poem from the Classic of Poetry. The tale of the Cowherd and the Weaver Girl has been celebrated in the Qixi Festival in China since the Han dynasty. It has also been celebrated in the Tanabata festival in Japan, and in the Chilseok festival in Korea. The story was selected as one of China's Four Great Folktales by the "Folklore Movement" in the 1920s—the others being the Legend of the White Snake, Lady Meng Jiang, and Liang Shanbo and Zhu Yingtai—but Idema (2012) also notes that this term neglects the variations and therefore diversity of the tales, as only a single version was taken as the true version.

Yamaguchi Rika works for a record company. She has the worst birthday of her life when she is cheated of her money by a former boyfriend. An older woman dressed in a leopard print dress suddenly appears in front of her with white smoke. This older woman identifies herself as Rika from 20 years into the future. She laments her untimely death, which was caused by losing her footing on a beer bottle at a pub. She has come from the future in order to make a fresh start in life. Together with her future self with a despairingly different style and appearance, Rika begins a big battle to start over again.