The actors did a mind blowing job in portraying their respective characters. The leads were amazing. I just love seo hae. How brave and courageous a lady she is. This movie also gives a small message in between that we should not take anything or anyone for granted and must understand their values before we end up losing it.It shows that the things which we used to take for granted like antibiotics, fresh food, decent house and clothing etc.
Besides the concept of time traveller and paradox are also shown though it could be even more defined and clear as those are advance level physics which require knowledge in that field. Nevermind!
Overall everything was amazing though the last episode seems a bit mind boggling but got it later on..!
For all those who love sci-fi and action related dramas.., this series is a must watch.