Set to launch its first episode on March 25, OCN's new drama 'Tunnel' tells the story of detective Park Kwang Ho (played by Choi Jin Hyuk). He goes after a suspect in a 1986 tunnel murder case and travels through time to the year 2016 trying to solve the horrendous crime scene from 30 years ago.

New still images were revealed of the cast looking intense against a mysterious background.

Furthermore, this will be Choi Jin Hyuk's first project after being discharged from the army. Director Shin commented on the crime thriller drama, "Although it is based on the gruesome murder case, the story will be focusing more on the human aspect."

Stay tuned for 'Tunnel'!

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