The ending of this season was rather unexpected and sad, but it will make the next season interesting. I really like MI-5, it just seems to have more class than many of the series coming out of Hollywood these days. I loaded my cue with the remaining seasons available and can't wait to pick-up with the characters that are left.
Off all the junk we "borrow" from the UK and make into our own (American Idol, Weakest Link, Chef Ramsay) it is amazing that this show has not been copied for the US. It is phenomenal, so well acted, intriguing and amazing scripts that somehow don't feel too far off plausibility, interesting character interactions. I am hooked on the complete series, but this season was excellent and the season finale is mind-blowing.