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Season 1 Episode
- Season 1 You're Doomed
- Season 1 We Still Have a Chance
- Season 1 We Can Prevent the Killings
- Season 1 We Found the Killer
- Season 1 Changing the Past Alters the Present
- Season 1 Catch Him by All Means
- Season 1 We Must Dig Deeper
- Season 1 How Are You Alive?
- Season 1 Hongwon Dong Case
- Season 1 Someone Has to Stop the Bad Guys
- Season 1 The One Last Case
- Season 1 The Case Was Manipulated
- Season 1 The Real Assailant
- Season 1 Not Now, But Maybe In The Past
- Season 1 Is It Really You?
- Season 1 If You Don't Give Up
Signal
8.02 48 minutes
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
