The BEST episodes of Tunnel

Every episode of Tunnel ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Tunnel!

A detective follows the trail of a serial killer 30 years into the future and teams up with detectives in that time period to find the culprit.

Last Updated: 2/20/2024Network: OCNStatus: Ended
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The Last Talk
star
8.88
24 votes

#1 - The Last Talk

Season 1 - Episode 12 - Aired 4/30/2017

Jung Ho Young, who was the witness to the murder of Sun Jae’s mother, commits suicide in his prison cell which leads to an impasse in the investigation. Meanwhile, Kwang Ho discovers another evidence that is crucial in solving the case.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
The Return
star
8.76
25 votes

#2 - The Return

Season 1 - Episode 16 - Aired 5/21/2017

Yeon Ho psychologically analyzes Mok Jin Woo and helps Kwang Ho and Sun Jae to get a confession from him. After dealing with everything in the present time, Kwang Ho decides to return to the past. Yeon Ho and Sun Jae have a hard time letting him go, but Kwang Ho insists to return to Yeon Sook.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
The Return
star
8.65
26 votes

#3 - The Return

Season 1 - Episode 13 - Aired 5/13/2017

Kwang Ho returns to the past in midst of a fight with Professor Mok. Jae Yi gets confused when she learns that Kwang ho is her real father. Meanwhile, everyone at Hwayang Police Station and Kwang Ho try their best to catch Professor Mok.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
The Real Kwang-Ho
star
8.61
31 votes

#4 - The Real Kwang-Ho

Season 1 - Episode 7 - Aired 4/15/2017

Sun Jae finds Kwang Ho who was born in 1988. He begins a secret investigation on his own to prove that Kwang Ho born in 1958 is fake. Meanwhile, Kwang Ho of 1958 doesn’t know that Sun Jae has found the other Kwang Ho and continues to look for him with Sung Shik.

Directors: Nam Ki-Hoon
Watch Now:Apple TV
The Fountain Pen
star
8.54
24 votes

#5 - The Fountain Pen

Season 1 - Episode 15 - Aired 5/20/2017

Kwang Ho finds out that Yeon Ho had been kidnapped by Mok Jin Woo and goes after him with the whole team. Mok Jin Woo threatens to kill Yeon Ho if she doesn’t tell him where the fountain pen is. While Yeon Ho persuades Mok Jin Woo that she has the pen, she also psychologically interrogates Mok Jin Woo of his past.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
Who Is The Real Murderer?
star
8.48
25 votes

#6 - Who Is The Real Murderer?

Season 1 - Episode 11 - Aired 4/29/2017

Jung Ho Young finally gets caught. Sun Jae and Kwang Ho interrogate him and find out some new facts. Jae Yi gets hospitalized and recalls the incident for Jung Ho Young’s arrest warrant. Meanwhile, new evidence is found in Jung Ho Young’s car.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
The Father and Daughter
star
8.44
25 votes

#7 - The Father and Daughter

Season 1 - Episode 14 - Aired 5/14/2017

Kwang Ho comes back to the present time and heads to the police station to catch Professor Mok. The whole team finds out that Kwang Ho travelled from the past. Jae Yi, also known as Yeon Ho, reunites with Kwang Ho as father and daughter. Meanwhile, another murder case occurs in the middle of the night.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
Another Murder
star
8.31
29 votes

#8 - Another Murder

Season 1 - Episode 9 - Aired 4/22/2017

The real culprit of the murder that occurred 30 years ago gets revealed. Another victim with the dots on the ankle appears. Kwang Ho and Sun Jae pick Jung Ho Young as a prime suspect, but they have a hard time catching Jung Ho Young.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
Jung Ho-Young's Bait
star
8.28
29 votes

#9 - Jung Ho-Young's Bait

Season 1 - Episode 10 - Aired 4/23/2017

Sun Jae receives a call from Jung Ho Young again. Professor Shin talks to Jung Ho Young through the speaker and tells him that she’s the only one that believes in him. Meanwhile, Professor Mok tells Kwang Ho and Sun Jae a clue that could lead them to the suspect.

Directors: Nam Ki-Hoon
Watch Now:Apple TV
The Truth
star
8.23
30 votes

#10 - The Truth

Season 1 - Episode 8 - Aired 4/16/2017

Kwang Ho can’t believe the irony of fate. He finds out that Sun Jae was the son of Seo Yi Soo. At first, Sun Jae doesn’t believe in Kwang Ho’s story, but he has no other option than to believe him. Kwang Ho decides to tell Sun Jae the whole truth.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
I'll Come Save You
star
8.14
36 votes

#11 - I'll Come Save You

Season 1 - Episode 1 - Aired 3/25/2017

In the town of Hwayang, series of murders that took young women’s lives away is making everyone feel anxious. Serious Crimes Unit of Hwayang Police Station works day and night to catch the culprit behind the incidents, but for months, they make no progress. At last, Kwang Ho makes a breakthrough and tracks down the murderer behind the murders.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
Me? Jealous?
star
8.14
29 votes

#12 - Me? Jealous?

Season 1 - Episode 6 - Aired 4/9/2017

Kwang Ho seeks for ways to chase after the younger Kwang Ho who was born in 1988. Sun Jae opens up to the older Kwang Ho who understands his trauma, but thinks Kwan Ho’s behavior is strange sometimes. Meanwhile, a mysterious identity theft that left no clue occurs.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
Where Am I?
star
8.13
32 votes

#13 - Where Am I?

Season 1 - Episode 2 - Aired 3/26/2017

When Kwang Ho wakes up, he finds himself in the year of 2016 where a police officer with the same name as him has gone missing. In order to find a way back to his world, he decides to go along with it as everyone in Hwayang Police Station thinks he’s the new recruit who’s been recently transferred. He gets busy right away as his team becomes in charge of a mysterious murder case.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
I'm Really Coming
star
8.00
32 votes

#14 - I'm Really Coming

Season 1 - Episode 3 - Aired 4/1/2017

The fifth body of the serial murders that started in 1986 has finally been found after 30 years. Kwang Ho is certain that he will be able to go back to his wife after solving this case. He finds a clue by using his memory of the time before he was sent from the past. Meanwhile, Sun Jae and Jae Yi cooperate in order to catch the criminal.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
Killer Among Us
star
7.97
32 votes

#15 - Killer Among Us

Season 1 - Episode 5 - Aired 4/8/2017

Sun Jae gets desperate to catch the killer and feels frustrated as the crimes keep happening. Meanwhile, another murder case occurs at an isolated rest area in a downpour. Kwang Ho is left with the suspect at the isolated rest area.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV
Like Attracts Like
star
7.97
31 votes

#16 - Like Attracts Like

Season 1 - Episode 4 - Aired 4/2/2017

Kwang Ho puts out the fire that broke out on the first floor of his apartment and realizes that the lady who studies maniacs, Jae Yi, is living downstairs. Meanwhile, Sung Shik gets suspicious of Kwang Ho’s identity and tails him. While Kwang Ho still hasn’t figured out the way to go back to the past, an organized case of theft occurs in his jurisdiction.

Directors: Nam Ki-Hoon
Watch Now:AmazonApple TV