There've been some uncommonly intelligent spy films produced by British television: TINKER, TAILOR, SOLDIER, SPY and SMILEY'S PEOPLE (both starring Sir Alec Guinness as the owlish George Smiley), and THE SANDBAGGERS miniseries. In all three, the agency involved is Her Majesty's Secret Intelligence Service (MI-6). The operatives are a tweedy lot, and the headquarters, either at the old "Circus" or the more modern Century House, are, like the remains of Empire, comfortably shabby. Thus, it was with some misgivings that I began MI-5, the ongoing glitzy miniseries featuring the SIS's less glamorous sister also known as the Security Service, which like America's FBI, deals with domestic intelligence, anti-subversion and counter-terrorism. The glitz is of Hollywood proportions - almost, for me, an instant turn-off. I'm glad I stuck with it.

The lead "spook" is Tom Quinn, played by Matthew MacFadyen. He runs an undercover operations team, the most prominent members of which are Zoe Reynolds (Keeley Hawes) and Danny Hunter (David Oyelowo). The interior of MI-5's London HQ, Thames House, is ultramodern and high tech; the CIA probably never had it so good. Tom's boss is the hardboiled and sphinx-like Harry Pearce, played by Peter Firth.

Admittedly, I didn't become engaged until episodes three and four, when I realized that the intricate scripts, fast-paced and tautly presented, transcended the glitz. I'm now hooked, and eagerly await the DVD release of the Season 2 episodes in late 2004. My only remaining complaint is the too clever lead-in to each episode which requires excessive button-pushing on the remote to navigate. I mean, just get on with it. Prince Charles will become King in a shorter time.

The storylines are contemporary: embassy take-overs by militant nationalists, insidious plots by Arab terrorists, illegal arms deals by enterprising Russians involving Whitehall cabinet officers, and the occasional appearance of IRA bombers. Gone are the good old days of KGB machinations on behalf of the Evil Empire. The episodes are slickly written with surprising plot twists. And MI-6 across the river maintains a scheming and patronizing presence.

Part of the show's attraction is that it doesn't paint its MI-5 heroes as perfect. They have relationship problems; they embezzle money from the Service; and perhaps have dark secrets in the past that invite blackmail during intra-office power struggles. Why, it sounds like any company I've ever worked for!

The end of the last episode in Series 1 is one of the best I've ever seen. It'll make you think twice before installing that elaborate security system on your house, or at least make you aware of the dangers posed by a small child catalyzed by chocolate icing.

Very well put together stories. I enjoyed every one of them and look forward to the next Vol.