This is a story about a man who lost his nephew because of a plane crash incident and there is something wrong with that incident. Then, there is a woman who only does her job as National Intelligence Service (NIS) agent until she meets the man that changes her perception about the jobs that She's doing. In this K-Drama, there are a lot of plot twists that make you think about who is behind all of this and it's going to be interesting when you found out who is the root of that plane crash incident.

Vagabond teaches us that everyone can change their mind as long there is a big opportunity. We can be greedy when money and power are involved but not the personality of a person. As long as we are still conscious, we can choose where is right and wrong even our actions. Do not trust everyone, trust yourself and several friends that really helped you during the crisis moment.