Pleasantly surprised to watch a drama that depicts the global problems:
- the power hungry bureacrats who would do anything using the pretext of
'For Your Safety', For your own good', or 'For the National Security'.
- grey spying and hacking areas for self-gratification
- interdepartmental distrusts
- collusion with criminals for personal gain
- silencing of the whistleblowers
- the strength/beauty of friendship and trust in a team (though there're 5 of them)
The ending was too much of a haste between the main lead and his father who just returned.