S1 E1 • You're Doomed

Haunted by a classmate's kidnapping 15 years ago, Park Hae Young becomes a police profiler who's lost faith in the police force. This all changes when he stumbles upon an old radio that's receiving transmissions from the past.

Première diffusion : 22 janvier 2016

S1 E2 • We Still Have a Chance

After the Kim Yoon Jung kidnapping case, the Chief of police creates a cold case squad. Their first case is the infamous Gyeonggi Nambu serial murders.

Première diffusion : 23 janvier 2016

S1 E3 • We Can Prevent the Killings

During the investigation of the serial murders, Park Hae Young discovers that the radio transmissions are actually connecting him to the past.

Première diffusion : 29 janvier 2016

S1 E4 • We Found the Killer

The cold case squad figures out who the serial killer is, but not before the wrong suspect turns himself in.

Première diffusion : 30 janvier 2016

S1 E5 • Changing the Past Alters the Present

Park Hae Young begins asking questions about Lee Jae Han. Meanwhile, the police force in Lee Jan Han's time struggles with a string of larceny cases.

Première diffusion : 5 février 2016

S1 E6 • Catch Him by All Means

Park Hae Young figures out that Oh Kyung Tae's true objective is the father of the girl he kidnaps.

Première diffusion : 6 février 2016

S1 E7 • We Must Dig Deeper

Lee Jae Han catches the real culprit behind the burglaries, unwittingly changing the past for the worse again.

Première diffusion : 12 février 2016

S1 E8 • How are You Alive?

The cold case squad finds Shin Da Hye, who has been living under the murder victim's identity.

Première diffusion : 13 février 2016

S1 E9 • Hongwon Dong Case

Park Hae Young uncovers another layer to Lee Jae Han's disappearance. An old demon from Cha Soo Hyun's past resurfaces.

Première diffusion : 19 février 2016

S1 E10 • Someone Has to Stop the Bad Guys

The Cold Case Squad is assigned to the serial murder, but the last the victims isn't identified. Cha Soo Hyun revisits a past trauma.

Première diffusion : 20 février 2016

S1 E11 • The One Last Case

The Cold Case Squad catches the Hongwon-dong serial killer, but Lee Jae Han's determination changes the past again.

Première diffusion : 26 février 2016

S1 E12 • The Case Was Manipulated

Park Hae Young becomes the prime suspect for the Section Chief's murder. Meanwhile, Lee Jae Han must find out who this "one" is before it's too late.

Première diffusion : 27 février 2016

S1 E13 • The Real Assailant

The Cold Case Squad secretly reinvestigates the Injoo gang rape case. Lee Jae Han finds out the connection Park Hae Young has to the case.

Première diffusion : 4 mars 2016

S1 E14 • Not Now, but Maybe in the Past

Following the trail the Section Chief left, Park Hae Young uncovers the truth behind his brother's death. Meanwhile, Cha Soo Hyun finds Lee Jae Han's radio in Hae Young's possession.

Première diffusion : 5 mars 2016

S1 E15 • Is It Really You?

Park Hae Young is framed and arrested for the murder of the Section Chief. Cha Soo Hyun sets out to save Lee Jae Han and to find the one witness who can bring down their enemy.

Première diffusion : 11 mars 2016

S1 E16 • If You Don't Give Up

Lee Jae Han is set on bringing down Kim Bum Joo, despite knowing that he's going to die, but a certain transmission is about to make all the difference.

Première diffusion : 12 mars 2016