I will be honest, not my favorite drama. I LOVE science fiction, but this one was not my cup of tea. It was nice to see Park Shin Hye in an action drama showing off her moves. She's an extremely talented actress.
@pad-hari, saw your post from November. I have to say that I'm still trying to find another drama like this one. The leads were smart and not easily fooled. More than that, they supported each other. We didn't have a weak male or female lead, we had a power couple.