I saw this while waiting up late one night - I forget why. It was the first episode, and I haven't missed it since. It's based around an organisation dedicated to 'maintaining the status quo', and three of its unwilling agents. So far, it seems to have avoided the trap of eternal repeats of the same script, and is witty and always of high quality. While it has sometimes invented a gadget purely for that plot, that is never a problem. Overall, very very good, although somewhat surreal just after watching Titanic, due to David Warner's part as 'The Man'.