Signal

1You're Doomed

67 minJan 22, 2016

Profiler Park Hae-young hears a man calling his name through a discarded two-way radio. The voice starts talking about an unsolved crime.

2We Still Have a Chance

66 minJan 23, 2016

The statute of limitations is lifted after the suspect's arrest. Hae-young joins Soo-hyun's team for the newly established cold case squad.

3We Can Prevent the Killings

65 minJan 29, 2016

Reality changes after Hae-young exchanges information with Jae-han. Hae-young tries to work together with Jae-han in 1989 to prevent the next murder.

4We Found the Killer

65 minJan 30, 2016

The ninth victim is Won-kyung, the woman Jae-han loves. A driver turns himself in, but Soo-hyun and Jae-han determine that his son is the real killer.

5Changing the Past Alters the Present

68 minFeb 5, 2016

Hae-young starts to investigate Jae-han's disappearance. Jae-han's former colleagues get suspicious about seeing Hae-young digging into the past.

6Catch Him by All Means

70 minFeb 6, 2016

Seeking vengeance for the events that lead to the death of his daughter, Kyung-tae commits a kidnapping after getting out of prison for burglary.

7We Must Dig Deeper

67 minFeb 12, 2016

Jae-han arrests Se-kyu for the serial burglary case, but the culprit is freed after serving a short sentence; Kyung-tae still commits murder.

8How Are You Alive?

74 minFeb 13, 2016

Soo-hyun and Hae-young notice a connection between the burglary case and Da-hye, the woman who killed herself twenty years ago.

9Hongwon-dong Case

74 minFeb 19, 2016

Hae-young learns that Chi-soo and Jae-han met in 1999 during a case in Inju. After serving time for the crime, Hae-young's brother had killed himself.

10Someone Has to Stop the Bad Guys

72 minFeb 20, 2016

The bodies discovered in the mountains appear to be more victims of the 1997 serial murder case. Jae-han learns that Soo-hyun became team leader.

11The One Last Case

78 minFeb 26, 2016

Hae-young and Soo-hyun arrest Jin-woo after coming to the conclusion that he is the killer. Hae-young asks Jae-han about the Inju rape case.

12The Case Was Manipulated

78 minFeb 27, 2016

Hae-young becomes a suspect for the murder of Chi-soo. Jae-han realizes who the principle offender of the attack on Hye-seung is.

13The Real Assailant

74 minMar 4, 2016

Soo-hyun and the others mourn after confirming that the remains belong to Jae-han. Hae-young learns that Jae-han used to look after him in the past.

14Not Now, but Maybe in the Past

74 minMar 5, 2016

Hae-young realizes the possibility that his brother could have been murdered after learning from Hye-seung that Sun-woo was not guilty.

15Is It Really You?

72 minMar 11, 2016

Hae-young is arrested for the murder of Chi-soo. Soo-hyun hears Jae-han apologizing over the radio for not being able to prevent Sun-woo's death.

16If You Don't Give Up

89 minMar 12, 2016

Hae-young is in critical condition after being shot while meeting with Sung-bum. In 2000, Jae-han has been captured by Bum-joo.