Following the assassination of President Park in 1979, various military factions wrestle for control during a violent coup in this tense South Korean period action drama.

The series is about an incident that takes place when the owners of the boarding house called 'Guest Summer Palace', which breaks stereotypes, and boarders with secrets gather to find Lee Seol who disappeared 13 years ago.

At the brink of his death, the CEO and founder of an IT company's spirit gets stuck inside a smartphone and enlists the help of a young man to do favors on his behalf in exchange for 10 billion won.

Lee Gang-Doo dreamed of becoming a soccer player, but an accident ended those dreams. His father died in the accident and he broke his leg. Lee Gang-Doo spent 3 years in rehab. Now, he doesn't have anything and just wastes his days. Lee Gang-Doo then meets Ha Moon-Soo. Ha Moon-Soo makes architecture models. Ha Moon-Soo also endured an accident that killed her younger sibling. She has suffered from guilt that she survived. She has lived her life earnestly, while suppressing her feelings. After meeting Lee Gang-Doo, Ha Moon-Soo begins to express her hidden feelings.

Driven by the desire to avenge his mother, a former gangster turned lawyer uses both his fists and the loopholes in law to fight against those with absolute power.

After the public rates the judicial system corrupt, the Devil Judge is appointed to live stream his trials. A reformist judge is hired as a secret mole to keep an eye on him.

During a mock trial at school, a student makes a shocking discovery. Yang Jong Hoon, a former prosecutor-turned-professor, examines the crime scene.

"LUCA" (Last Universal Common Ancestor) is based on Charles Darwin's proposition that all species of life have descended over time from common ancestors.

During the Joseon Dynasty, the Secret Royal Inspectors are the eyes and ears of the king. They travel the provinces undercover and listen to the plight of the common people, investigating abuses and corruption of government officials.

It's Goo Ra Ra's big day. Sun Woo Joon catches her off-guard with a memorable first encounter, moments before her world comes crashing down.