KEI follows FUNG to a remote island for training. When KEI has to face the injured alone, the feeling that she is abandoned occurs to her again. She uses the method that FUNG taught her to try to alleviate the stress but it does not work. She is still afraid of being on her own. Unwittingly, she hands in her resignation to FUNG. FUNG calls KEI again and again to see what has happened but she refuses to answer the calls. FUNG worries a lot. Seeing this, LAM fears that FUNG will neglect her again because of work, just as he did in the past. A boy blacks out when he is hiking on an island with his father. He regains his consciousness after LAM has had a look at him. WAN is taking them to hospital when he receives an order from the Control Center to rescue another casualty who is near where they are. WAN asks LAM about the boy’s situation and decides to rescue the other casualty first before they head to hospital……