An elderly woman shows acute symptoms of dementia. The patient reminds Hyun of his father, but he thinks that it may not be the same case for the pa-tient. Meanwhile, he gets a call from the rehab center that his father went missing.

The hospital ship crew is held captive by drug smugglers while Eun Jae and Hyun must operate on their boss. The drug smugglers threaten Eun Jae saying that if she does not finish the surgery in time, they will kill each member of the ship. Eun Jae doubts herself and worries for the safety of the crew.