The WORST episodes of Undercover (KR)

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

Han Jung Hyun is an agent of National Intelligence Service formerly Agency for National Security Planning, who has been hiding his identity for quite sometime. Choi Yeon Soo, a human rights lawyer, becomes the first head of the agency for justice. These main leading characters of the series uncover the truth, pitted against a huge force holding top position. The series tests their relationship as husband and wife when the secret life of Jung Hyun comes to fore.

Last Updated: 2/3/2025Network: JTBCStatus: Ended
Episode 8
star
7.78
9 votes

#1 - Episode 8

Season 1 - Episode 8 - Aired 5/15/2021

Yeon-su declares that Kim Myeong-jae is innocent, and Jeong-hyeon is contacted by Kim Tae-yeol's murderer, Park Du-sik.

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Episode 9
star
7.88
8 votes

#2 - Episode 9

Season 1 - Episode 9 - Aired 5/21/2021

Yeon-su tries her best to retrieve evidence about the Kim Myeong-jae case, and Jeong-hyeon is framed for murder and goes on the run.

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Episode 7
star
7.89
9 votes

#3 - Episode 7

Season 1 - Episode 7 - Aired 5/14/2021

Yeon-su is forced to investigate Kim Myeong-jae, while Hyeong-rak and Yeong-geol are watching her every move.

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Episode 5
star
7.90
10 votes

#4 - Episode 5

Season 1 - Episode 5 - Aired 5/7/2021

Jeong-hyeon uses Yeong-geol to uncover the truth behind "Project Deep-Pockets," while a whistleblower causes chaos at Yeon-su's appointment hearing.

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Episode 3
star
7.92
12 votes

#5 - Episode 3

Season 1 - Episode 3 - Aired 4/30/2021

Seung-gu is targeted as Hyeong-rak conspires against Yeon-su to prevent her appointment, while a letter arrives from the late Cha Min-ho.

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Episode 10
star
8.00
8 votes

#6 - Episode 10

Season 1 - Episode 10 - Aired 5/22/2021

Yeon-su grows suspicious of Jeong-hyeon, and Yeong-geol realizes that Jeong-hyeon has been spying on him.

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Episode 4
star
8.08
12 votes

#7 - Episode 4

Season 1 - Episode 4 - Aired 5/1/2021

Seung-gu's assault speculations risks Yeon-su's appointment, and Jeong-hyeon looks into "Project Deep-Pockets"

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Episode 6
star
8.10
10 votes

#8 - Episode 6

Season 1 - Episode 6 - Aired 5/8/2021

Yeon-su risks her appointment to take responsibility for the situation, and Jeong-hyeon rushes to help her when he finds out she is in trouble.

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Episode 2
star
8.27
15 votes

#9 - Episode 2

Season 1 - Episode 2 - Aired 4/24/2021

Jeong-hyeon must lie to protect Yeon-su while she becomes involved in a potentially dangerous case.

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Episode 1
star
8.28
18 votes

#10 - Episode 1

Season 1 - Episode 1 - Aired 4/23/2021

Jeong-hyeon and Yeon-su are faced with an uncomfortable feeling as they both work hard to live an ordinary life of raising their autistic son.

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Episode 12
star
8.29
7 votes

#11 - Episode 12

Season 1 - Episode 12 - Aired 5/29/2021

Yeon-su learns Jeong-hyeon's true identity, while the Corruption Investigation Office becomes suspicious of Yeong-geol and Park Won-jong.

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Episode 15
star
8.29
7 votes

#12 - Episode 15

Season 1 - Episode 15 - Aired 6/11/2021

Yeon-su increases her efforts to bring in Hyeong-rak, while Jeong-hyeon infiltrates the National Intelligence Service.

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Episode 13
star
8.33
6 votes

#13 - Episode 13

Season 1 - Episode 13 - Aired 6/4/2021

Yeon-su discovers that Park Won-jong was embezzling funds, and Won-jong steals Hyeong-rak's tablet PC to side with Yeon-su.

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Episode 16
star
8.43
7 votes

#14 - Episode 16

Season 1 - Episode 16 - Aired 6/12/2021

Yeon-su and Jeong-hyeon are faced with grave danger as Yeon-su is taken hostage by Hyeong-rak.

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Episode 14
star
8.50
6 votes

#15 - Episode 14

Season 1 - Episode 14 - Aired 6/5/2021

Jeong-hyeon is knocked out and abducted, while Yeon-su receives a recording with information about that fateful day in 1991.

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Episode 11
star
8.57
7 votes

#16 - Episode 11

Season 1 - Episode 11 - Aired 5/28/2021

The truth behind the Cha Min-ho and Park Du-sik cases is revealed, and Yun-ju wishes to meet Yeon-su to tell her a surprising truth.

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