In "Signal" there was a very shocking change of events as the protagonist Kim Hye Soo tied. Jo Jin Woong and Lee Je Hoon talked on the walkie talkie and got the past to be right, as they are trying to bring Kim Hye Soo back to life.
On the episode of tvN Friday/Saturday drama "Signal" (script Kim Eun Hee, director Kim Won Suk) broadcast on Feb. 6th, the ending of the kidnapping incident of Shin Yeo Jin (played by Choi Woo Ri) was revealed. Oh Kyung Tae (played by Jung Suk Young)'s real goal was not Shin Yeo Jin but her father Shin Dong Woon.
On this day, Lee Je Han (played by Jo Jin Woong) said to Park Hye Young (played by Lee Je Hoon), "We were wrong. This walkie talkie business should not have started" and cried. The more they were on walkie talkies, they saw that innocent lives were dying and at this, Lee Jae Han was feeling guilty about this. Park Hye Young said, "Catch the real culprit. If you can find the real culprit now, everything will go well." He persuaded.
Meanwhile, in the present where Park Hye Young lived, the reason that he kidnapped Shin Yeo Jin was revealed. The actual target was Shin Dong Woon, Shin Yeo Jin's father.
Meanwhile, "Signal" is about two detectives - one from the past and one from the present who communicate through walkie talkies to resolve long-time unresolved cases.
