The 2016 hit series received critical acclaim for its compelling stories at the time of its release, with many viewers having been eagerly waiting for its return.
Actress Kim Hye-soo, who captivated viewers with her portrayal of a cold case squad detective, reunites with actors like Cho Jin-woong and Lee Je-hoon, as the main cast from the first season reprises their roles.
The series revolves around detectives from different time periods who communicate through a mysterious walkie-talkie to solve long-unsolved cases.
The upcoming season consisting of 16 episodes is scheduled to air in January next year in time for the channel's 20th anniversary.
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