This drama is not just for the action lovers, but for anyone who values friendship, brotherhood etc. This shows hooks you up from the beginning and then it will be fun, action, sentimental ride all through the season. You will feel like you are part of the drama and the brotherhood. The action scenes are lit and fist fights are must watch. This is one of the very few kdrama that has no romance or girl falling for a guy and so on. A very engaging and it has a message for the society too. I have now become a big fan of Gun-woo and Woo-Jin. A must watch drama for all kind .. Strongly Recommend!!!