Truly a very good drama. It is full of action and thrill, but there is also a bit of romance, lot of drama and incredible story of a father who would do anything to save his sick daughter, despite not knowing of her existence before the event happened. Lee Joon Gi is once again amazing in his role, but I would surely praise the child actress, main villain and female lead, as well as the rest of the cast for doing a great job. Definitely worth watching and you will not regret watching this drama, even though its a bit older one, it still is really, really good.