Episode Hive Logo
Show cover for Signal

The Worst Episodes of Signal

Every episode of Signal ranked from worst to best. Explore the Worst Episodes of Signal!


Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.

Genres:CrimeMysterySci-Fi & FantasyDrama
Network:tvN

Lowest Rated Episodes Summary

The worst episode of "Signal" is "Changing the Past Alters the Present", rated 7.4/10 from 174 user votes. It was directed by Kim Won-suk and written by N/A. "Changing the Past Alters the Present" aired on 2/5/2016 and is rated 0.1 point(s) lower than the second lowest rated, "If You Don't Give Up".

  • Changing the Past Alters the Present
    7.4/10 174 votes

    #1 - Changing the Past Alters the Present

    Season 1 Episode 5 - Aired 2/5/2016

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

    Director: Kim Won-suk

    Writer: N/A

  • If You Don't Give Up
    7.5/10 171 votes

    #2 - If You Don't Give Up

    Season 1 Episode 16 - Aired 3/12/2016

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

    Director: Kim Won-suk

    Writer: N/A

  • We Must Dig Deeper
    7.6/10 161 votes

    #3 - We Must Dig Deeper

    Season 1 Episode 7 - Aired 2/12/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • The One Last Case
    7.6/10 155 votes

    #4 - The One Last Case

    Season 1 Episode 11 - Aired 2/26/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • Catch Him by All Means
    7.8/10 170 votes

    #5 - Catch Him by All Means

    Season 1 Episode 6 - Aired 2/6/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • You're Doomed
    7.9/10 259 votes

    #6 - You're Doomed

    Season 1 Episode 1 - Aired 1/22/2016

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

    Director: Kim Won-suk

    Writer: N/A

  • Hongwon Dong Case
    7.9/10 161 votes

    #7 - Hongwon Dong Case

    Season 1 Episode 9 - Aired 2/19/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • Not Now, But Maybe In The Past
    7.9/10 150 votes

    #8 - Not Now, But Maybe In The Past

    Season 1 Episode 14 - Aired 3/5/2016

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

    Director: Kim Won-suk

    Writer: N/A

  • We Still Have a Chance
    8.0/10 215 votes

    #9 - We Still Have a Chance

    Season 1 Episode 2 - Aired 1/23/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • We Can Prevent the Killings
    8.0/10 199 votes

    #10 - We Can Prevent the Killings

    Season 1 Episode 3 - Aired 1/29/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • Someone Has to Stop the Bad Guys
    8.1/10 158 votes

    #11 - Someone Has to Stop the Bad Guys

    Season 1 Episode 10 - Aired 2/20/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • The Case Was Manipulated
    8.1/10 155 votes

    #12 - The Case Was Manipulated

    Season 1 Episode 12 - Aired 2/27/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • The Real Assailant
    8.1/10 159 votes

    #13 - The Real Assailant

    Season 1 Episode 13 - Aired 3/4/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • Is It Really You?
    8.1/10 152 votes

    #14 - Is It Really You?

    Season 1 Episode 15 - Aired 3/11/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • We Found the Killer
    8.2/10 204 votes

    #15 - We Found the Killer

    Season 1 Episode 4 - Aired 1/30/2016

    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.

    Director: Kim Won-suk

    Writer: N/A

  • How Are You Alive?
    8.4/10 172 votes

    #16 - How Are You Alive?

    Season 1 Episode 8 - Aired 2/13/2016

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

    Director: Kim Won-suk

    Writer: N/A