Doctors working during a disastrous scenario is an interesting take on the medical genre and it worked, at least for the 1st half. Resources were limited, the tension was intense and the stakes were high. It created a good mix for a thriller. However, things began to turn back into a regular medical drama in the 2nd half, it even brought with it the typical issues and conflicts with a hospital management. It slowly began to lose its attraction at that point. The brief romance was strange, it didn't work because it happened over a very short period of time. You may justify it as a little trauma bonding experience. The cast were mostly fine, however, the characters often went for over-dramatization over professionalism which took away from some of the serious moments. The drama could've worked better if it were a mini series of something like 8 episodes with good direction.
Around the end, they brought a little girl to translate sign language of the ML's brother final moments before death. Nobody thought how that might be traumatizing for a child to watch a recording of someone drowning and dying in a distressful situation until he become a floating corpse deep underwater!! There were a lot of other examples were the characters went for over-dramatization over professionalism.