Mad Dog - Season 1 Episode 5 The Real Cause
Overview: Both Kang Woo and Min Joon go after Lee Mi Ran who is still alive. Min Joon steals Cheetah's phone to get information, and he finds Lee Mi Ran before Kang Woo does. Meanwhile, Hong Joo realizes there's a dark secret regarding the flight accident that's thought to be a suicidal crash.