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Signal

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S2 E1

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About Signal

Signal is a mystery and sci-fi & fantasy TV series that premiered on tvN on January 22, 2016. It has 2 seasons and 24 episodes so far and has ended. The latest episode, Season 1 Episode 16 "If You Don't Give Up", aired on March 12, 2016. The next episode, Season 2 Episode 1, airs on Monday, November 30, 2026.


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

  • Mystery
  • Sci-Fi & Fantasy
  • Drama
  • Crime

Last updated

Episodes

24 episodes · 2 seasons

Season 1

2016 · 16 episodes · Last episode: 10 years ago

Communicating via a walkie-talkie that transcends time, a profiler from 2015 and a detective from 1989 join forces to tackle crimes and injustice.

Signal Season 1 release dates →
  1. Signal S1 E16 still E16

    16. If You Don't Give Up

    Finale

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

  2. Signal S1 E15 still E15

    15. Is It Really You?

    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.

  3. Signal S1 E14 still E14

    14. Not Now, but Maybe in the Past

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

  4. Signal S1 E13 still E13

    13. The Real Assailant

    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.

  5. Signal S1 E12 still E12

    12. The Case Was Manipulated

    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.

  6. Signal S1 E11 still E11

    11. The One Last Case

    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.

  7. Signal S1 E10 still E10

    10. Someone Has to Stop the Bad Guys

    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.

  8. Signal S1 E9 still E9

    9. Hongwon-dong Case

    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.

  9. Signal S1 E8 still E8

    8. How Are You Alive?

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

  10. Signal S1 E7 still E7

    7. We Must Dig Deeper

    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.

  11. Signal S1 E6 still E6

    6. Catch Him by All Means

    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.

  12. Signal S1 E5 still E5

    5. Changing the Past Alters the Present

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

  13. Signal S1 E4 still E4

    4. We Found the Killer

    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.

  14. Signal S1 E3 still E3

    3. We Can Prevent the Killings

    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.

  15. Signal S1 E2 still E2

    2. We Still Have a Chance

    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.

  16. Signal S1 E1 still E1

    1. You're Doomed

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

The Second Signal

2026 · 8 episodes

Signal The Second Signal release dates →
  1. E8

    8. Episode 8

    Finale
  2. E7

    7. Episode 7

  3. E6

    6. Episode 6

  4. E5

    5. Episode 5

  5. E4

    4. Episode 4

  6. E3

    3. Episode 3

  7. E2

    2. Episode 2

Cast & crew

Created by Kim Eun-hee and Kim Won-suk

  • Choi Woo-ri

    Choi Woo-ri

    Shin Yeo-jin

  • Son Hyun-joo

    Son Hyun-joo

    Jang Young-cheol

  • Ji Hye-in

    Ji Hye-in

    Girl 3

  • Jang Hyuk-jin

    Jang Hyuk-jin

    Celebrity News Journalist

  • Oh Yeon-ah

    Oh Yeon-ah

    Yoon Soo-ah

  • Song You-hyun

    Song You-hyun

    Kang Se-young

  • Seo Jung-joon

    Seo Jung-joon

    Seo Hyung-joon

  • Jeong Jong-yeol

    Jeong Jong-yeol

    Police Sergeant

  • Sung Hyun-mi

    Sung Hyun-mi

    Jung Kyung-soon

  • Kim Ki-cheon

    Kim Ki-cheon

    Lee Chan-goo

  • Lee Ki-seop

    Lee Ki-seop

    Lee Jin-hyung

  • Lee Shi-a

    Lee Shi-a

    Kim Won-kyeong

  • Lee Do-yeop

    Lee Do-yeop

    Detective Park

  • Kim Myeong-joong

    Kim Myeong-joong

    Prison Guard

  • Jeong Seok-yong

    Jeong Seok-yong

    Oh Gyung-tae

  • Park Si-eun

    Park Si-eun

    Oh Eun-ji

Signal FAQ

When is the next episode of Signal?

The next episode of Signal, Season 2 Episode 1, airs on Monday, November 30, 2026. Get the Streambay app to be notified the moment it's out.

When did the latest episode of Signal come out?

The most recent episode of Signal, Season 1 Episode 16 "If You Don't Give Up", aired on March 12, 2016.

How many seasons of Signal are there?

Signal has 2 seasons with 24 episodes in total.

When did Signal first air?

Signal first aired on tvN on January 22, 2016.

How do I get notified when new episodes of Signal are released?

Download the Streambay app, follow Signal, and you'll get a push notification the moment each new episode is released.

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