Season 1
8.4/1034 votesLoading...Just Another Meaningless Day
Season 1 Episode 1 - Aired 8/9/2021
Yoo Dong-man goes undercover to root out illegal gambling. Kang Sun-ho steals money from criminals to pay for his father’s cancer treatment.
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8.7/1028 votesLoading...Sun-ho Meets Dong-man Again
Season 1 Episode 2 - Aired 8/10/2021
Oh Kang-hui witnesses her mom’s arrest. When training begins at the university, Dong-man appoints Sun-ho a leader, set on flunking him.
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8.3/1023 votesLoading...Nothing Is Impossible
Season 1 Episode 3 - Aired 8/16/2021
Determined to bring victory to his team, Sun-ho asks Dong-man for advice. The final assignment comes with a twist.
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8.5/1020 votesLoading...No Hard Evidence
Season 1 Episode 4 - Aired 8/17/2021
Sun-ho gets grilled in class. Kang-hui’s personal life is made public on the school website. Dong-man feels out the police chief.
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8.6/1023 votesLoading...The Duo
Season 1 Episode 5 - Aired 8/23/2021
Dong-man grows suspicious of a fellow professor. With Sun-ho by his side, he scopes out the scene of the crime to check out an alibi.
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8.4/1018 votesLoading...The Blackout
Season 1 Episode 6 - Aired 8/24/2021
Another potential culprit appears on Dong-man’s radar. Sun-ho struggles to remember the events of the night before. The campus hosts a field day.
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8.1/1016 votesLoading...The Disappointment
Season 1 Episode 7 - Aired 8/30/2021
Sun-ho finds Park Cheol-jin suspect, but Dong-man is determined to keep him off the watch list. Kang-hui attends her mom's trial.
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8.4/1015 votesLoading...The Culprit
Season 1 Episode 8 - Aired 8/31/2021
Cheol-jin finds himself in an even deeper rut when he's cornered by Sun-ho and Dong-man. A cheating scandal breaks out during the final exams.
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8.2/1014 votesLoading...The Confession
Season 1 Episode 9 - Aired 9/6/2021
Cheol-jin falls into a trap. Dong-man takes a closer look into Ko Deok-bae’s business. Kang-hui insists on joining Sun-ho in the investigation.
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8.4/1015 votesLoading...Sun-ho’s Investigation Team
Season 1 Episode 10 - Aired 9/7/2021
Sun-ho and his friends track the location of the burner phone. The professors step in to protect their students from further danger.
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7.8/1014 votesLoading...The Case Closed
Season 1 Episode 11 - Aired 9/13/2021
Sun-ho gets Kang-hui a gift, but hesitates to give it to her. A critical piece of evidence is missing. Dong-man spots a colleague at the precinct.
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8.2/1013 votesLoading...The Enemy Within
Season 1 Episode 12 - Aired 9/14/2021
Sun-ho’s criminal history comes back to haunt him. Learning of Choi Hui-su’s connections to the case, Dong-man leans on his gut and tails her.
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7.5/1016 votesLoading...Sun-ho’s Counterattack
Season 1 Episode 13 - Aired 9/27/2021
Sun-ho acquires a key to a safe, Kang-hui calls it quits and Dong-man gets eyes on the chief. Stronger curfews and regulations are enforced on campus.
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8.1/1014 votesLoading...The Ledger
Season 1 Episode 14 - Aired 9/28/2021
With his hands on the ledger, Dong-man is sure that he's pinned down the culprit. Sun-ho gets arrested for conspiring with Jang Jae-gyu.
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8.2/1013 votesLoading...The Head Operator Of The Zelkov
Season 1 Episode 15 - Aired 10/4/2021
The police look for incriminating evidence against Han Jeong-sik. The truth behind the foundation finally comes to light.
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8.0/1014 votesLoading...The Hacker Sun-ho
Season 1 Episode 16 - Aired 10/5/2021
Sun-ho completes one final hacking job before dropping out of school. He turns himself in for his past crimes so he can return with a clean slate.
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