On May 17, MBC released three new teasers for its upcoming action-thriller drama “Lookout.”

The three teasers captivate the audience with a tragic yet action packed storyline. They revolve around the story of actress Lee Si Young, who will play the role of Cho Su Ji, a single mother who loses her daughter. Actor Kim Young Kwang appears as young prosecutor Jang Do Han, while SHINee’s Key and Kim Seul Gi are also a part of the main cast.

In the first teaser, we hear Cho Su Ji whispering “I will keep my promise this time,” in a sorrowful voice. The next scenes show Cho Su Ji running away and Jang Do Han on the floor with a gunshot wound. The teaser closes with Cho Su Ji and Jang Do Han pointing guns at each other.

The second teaser emphasizes the action-thriller side of “Lookout,” as Cho Su Ji speeds through the city in a motorbike, jumps off a window, and gets involved in a car accident.

The third teaser shows Cho Su Ji at the funeral of her own daughter. Cho Su Ji cries, “Why did you do it?” while pointing a gun to a school boy, suggesting that there are complicated reasons behind her daughter’s death.

Finally, the teaser ends with Cho Su Ji’s narration, vowing to catch her daughter’s murderer.

The first episode of “Lookout” will air on May 22 at 10 p.m. KST.

Watch the three gripping teasers below!