Third-year basic surgical trainee FAN TSE-YU is on her way to Mercy Hospital on her first day of placement, during which she gets stuck in a traffic jam caused by a car crash. Primary school boy TO TZE-LAM is injured in the crash, but is saved by final-year higher trainee in Neurosurgery CHEUNG YAT-KIN who happens to pass by. Having finished their medical studies in the Faculty of Medicine, YEUNG PUI-CHUNG and his classmates start their housemanship in Mercy Hospital. YU, CHUNG, TONG HON-PONG and HUNG MEI-SUET report for duty at the Neurosurgery Department and start to visit various wards in the company of KIN. KIN and YU are impressed with SUET’s venipuncture techniques while CHUNG is so careless that he has caused the patient to suffer a great deal all through the process. YU thinks that KIN is being too harsh with CHUNG and has a very bad impression of him. KIN asks Dr TANG LIK-HOI of the A&E Department about LAM’s latest condition and agrees to keep him in hospital overnight for observation. Neurosurgery specialist Dr CHONG BOK-MAN is however opposed to KIN’s decision. Renowned Neurosurgeon FAN TZE-NGOK comes to the hospital to see YU. KIN is actually NGOK’s student but he is nothing more than a toady in YU’s eyes. KIN needs YU to closely monitor LAM’s condition. LAM confides in YU that he is desperate to take part in the music festival. To fulfill his wish, YU tries to convince MAN to discharge the boy. (Source: tubitv)