The BEST episodes of Signal
Every episode of Signal ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Signal!
Fifteen years apart, two driven detectives work together to crack an unsolved kidnapping case and rewrite history.
#1 - Not Now, but Maybe in the Past
Season 1 - Episode 14 - Aired 3/5/2016
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.
#2 - We Found the Killer
Season 1 - Episode 4 - Aired 1/30/2016
The cold case squad figures out who the serial killer is, but not before the wrong suspect turns himself in.
#3 - Is It Really You?
Season 1 - Episode 15 - Aired 3/11/2016
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.
#4 - How are You Alive?
Season 1 - Episode 8 - Aired 2/13/2016
The cold case squad finds Shin Da Hye, who has been living under the murder victim's identity.
#5 - If You Don't Give Up
Season 1 - Episode 16 - Aired 3/12/2016
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.
#6 - The One Last Case
Season 1 - Episode 11 - Aired 2/26/2016
The Cold Case Squad catches the Hongwon-dong serial killer, but Lee Jae Han's determination changes the past again.
#7 - The Case Was Manipulated
Season 1 - Episode 12 - Aired 2/27/2016
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.
#8 - The Real Assailant
Season 1 - Episode 13 - Aired 3/4/2016
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.
#9 - Hongwon Dong Case
Season 1 - Episode 9 - Aired 2/19/2016
Park Hae Young uncovers another layer to Lee Jae Han's disappearance. An old demon from Cha Soo Hyun's past resurfaces.
#10 - Catch Him by All Means
Season 1 - Episode 6 - Aired 2/6/2016
Park Hae Young figures out that Oh Kyung Tae's true objective is the father of the girl he kidnaps.
#11 - You're Doomed
Season 1 - Episode 1 - Aired 1/22/2016
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.
#12 - We Can Prevent the Killings
Season 1 - Episode 3 - Aired 1/29/2016
During the investigation of the serial murders, Park Hae Young discovers that the radio transmissions are actually connecting him to the past.
#13 - We Still Have a Chance
Season 1 - Episode 2 - Aired 1/23/2016
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.
#14 - Someone Has to Stop the Bad Guys
Season 1 - Episode 10 - Aired 2/20/2016
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.
#15 - Changing the Past Alters the Present
Season 1 - Episode 5 - Aired 2/5/2016
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.
#16 - We Must Dig Deeper
Season 1 - Episode 7 - Aired 2/12/2016
Lee Jae Han catches the real culprit behind the burglaries, unwittingly changing the past for the worse again.