North Korea's 8th Special Forces hijack a shipment of CTX, a potent new liquid explosive, and threatens South Korea as part of a plot to re-unify the two countries. Ryu and Lee, special agents of O.P., South Korea's secret intelligence service, attempt to track down the terrorists and find the CTX. Meanwhile Hee, the 8th's ultra-bad female sniper, resurfaces to wreak havoc and haunt Ryu.

At work, she's a renowned assassin. At home, she's a single mom to a teenage daughter. Killing? That's easy. It's parenting that's the hard part.

Se-jin, a high school student, becomes pregnant and gets ostracized by her family and school. While wandering the streets, she meets Joo-yeong, an experienced runaway, and tries to get an abortion with Joo-yeong's help.

Seon-hee is a high school girl who used to tell lies to get her friends attention. She leaves Seoul guilt-ridden when her friend Jung-mi kills herself because of Seon-hee's lies. In the countryside where no one knows her, Seon-hee begins a new life as Seul-ki.

Nothing seems to work out for Cha Jicheon. One day, he goes to a convenient store in a drunken state, and purchases a ‘buy one get one free’ deal. The next morning, there’s a naked man in his room who looks just like him. Jicheon leaves his alter ego at home, and takes his girlfriend on their first holiday together. Now, Jicheon’s family spends a night with his alter ego… “I wish there were another me.”

You earn as much as you work, and you live off that money. This simple proposition has always been a problem for Jung-cheol. At the soybean paste factory he went to work for in the bitter winter, he dreams of travelling to warm Philippines in spring - as long as he survives the winter making his portion of the soybean paste that he promised the boss. But the more he struggles to live, the worse it gets. And soon, the fermentation room turns musty with the black mold spreading from the thousands of ferment boiled soybean lumps.

Five years after her son's death, Min-young joins a group for women who have lost a child, only to hear someone laughing.

Eun-hee is an actress who also plays in her real life. One day, she meets three different men and changes her own character each time she dates them, just like taking a role in the play. One is clever and polite, another is boyish and honest, and the last seems elegant and mature. Though each of her performances full of lies seems going smoothly, everything is about to be messed up at the end.

A story about a three-part family with lots of stories to tell and the first episode of the '3 life parts' that is completed henceforth.

Yoon-jae moves to a new high school and starts hanging out with Se-joon, a mysterious student. Needing money for his sickly mother, Yoon-jae accepts a job offer by Se-joon. However, he doesn't exactly know what it is.