Season 2 improves upon season 1. It's action packed as well as intelligent. Stellar performances by returning cast members as well as some great new additions. Lee Joon Gi does justice upon his roles and was an amazing replacement for Song Joong Gi. Don't let your prejudices keep you from watching this amazing season and miss out on the truly incredible performances by the leads. I will have to shout it from the rooftops, but Lee Joon Gi truly was breathtaking as the older and hardened Eunseom and Saya.