After Min Ho's death, Ha Na is determined to catch his killer. She succeeds in having Gu Young Tae arrested, as he is the lead suspect in this case. However, without any real evidence, the prosecution has no choice but to set him free. Ha Na goes to Do Ki, who has already been chasing Gu Young Tae, and asks for his help. Ha Na questions Chairman Baek about MH Trading since she is their biggest investor, but she denies knowing anything about it or what they do. The investigation continues and it leads to the discovery of a large organ trafficking ring. Do Ki and the team at Rainbow Transport find a surprise when they go to the private jail.