In 2005, Kang Moon-Jae (Lee Hyun-Woo) is a high-school student and a trouble maker. Since his mother remarried, Kang Moon-Jae has lived with his father, Kang Ka-Deuk (Ahn Nae-Sang), but he can't get along with him. One day, Kang Moon-Jae runs away on his motorcycle and gets into an accident.
He then finds himself in 2015 and learns that his father is in a comatose state. Ka-Deuk got into an accident trying to find his son. Kang Moon-Jae decides to go back to 2005 to change the future.
Two teenagers, Noah and Saskia, meet over the internet and begin to write an online comic strip together. The catch? Noah lives in England, while Saskia is from Australia.
Orphaned Heidi lives with her reclusive grandfather in the Swiss Alps, where she befriends goatherd Peter. She eventually moves to the city, where she's taken to be a companion to a sickly girl named Clara.
Hulusi's life is ruined by an accident. Hulusi, who has survived to death, is determined to make up for the mistakes he has made in the past. Hulusi struggles to find three women in the past who hurt their heart. He gets help from Demir for this. But things get mixed up when Hulusi learns that there are three children from these three women.
Parviz and Maliha are a husband and wife who work in a museum in Tehran. One night, while the couple is busy with their duties, an unexpected event happens that puts them at a crossroads and can change their lives forever.
On a rainy day a stray puppy named Buksi arrives on Futrinka Street. The cat Cicamica adopts him, and Morzsa, an old dog, plays a fatherly role. Buksi gets to know the neighborhood, makes friends, gets in trouble, and goes on adventures.