Signal
Someone Has to Stop the Bad Guys (02/20/2016)
Overview
The bodies discovered in the mountains appear to be more victims of the 1997 serial murder case. Jae-han learns that Soo-hyun became team leader.
Main Cast
Lee Je-hoon
Park Hae-young
Kim Hye-soo
Cha Soo-hyun
Cho Jin-woong
Lee Jae-han
Jang Hyun-sung
Kim Bum-joo
Jung Hae-kyun
Ahn Chi-soo
Kim Won-hae
Kim Gye-chul