Back at Wernham Hogg, lovelorn Tim has to endure not only the officious behaviour of Gareth, now his manager, but also a cheerless existence bereft of Dawn, who is living in Florida with boorish fiancé Lee. Matters are brought to a head for all concerned--including Lee and Dawn, flown over specially for the occasion--when they finally gather in the office for the party.

As ever the script is full of priceless one-liners (witness big Keith's chat-up spiel, as he promises "at least one orgasm" to any woman), and the show is peppered with those direct appeals to camera (Tim's weary "I don't believe he just said that" look, Brent's desperate self-justificatory "Eh?"), as well as achingly effective silences that simultaneously enhance the fly-on-the-wall conceit and heighten the comic effect. Without descending into the sentimental or the trite, somehow The Office closes for business on a genuinely heartwarming note.

On the DVD: This single disc has good, if unexceptional, bonus features. There's a behind-the-scenes documentary in similar format to those on the previous releases, a commentary from Stephen Merchant and Ricky Gervais on Episode 2, a funny and deservedly self-congratulatory featurette on the Golden Globe Awards ceremony, the full video of David Brent's single "If You Don't Know Me By Now" plus a recording session for "Freelove Freeway" (with Noel Gallagher on backing vocals). --Mark Walker