Struggling to find success, a former wrestling prodigy finds himself ready to quit until he reencounters an old friend who reignites his passion.

The story of a mysterious taxi service that takes revenge on behalf of victims who are unable to get justice from the law. Kim Do Ki is a mysterious driver for the taxi company whose mother was murdered. Kang Ha Na is a passionate attorney. Go Eun is an IT specialist, while others consider her a hacker. Along with Kim Do Ki, she works as part of Rainbow Taxi Company to solve people’s problems.

A story where ten people get the chance to go back in time by one year, but unexpectedly mysterious situations start to arise when their fates are changed and twisted in the process.

In a mythical land called Arth, the inhabitants of the ancient city of Arthdal and its surrounding regions vie for power as they build a new society.