It ends hilariously...
The discotheque extravaganza (e.g. with Fowler & Goody winking at each other to practice their charm potential and given a remark "The gay disco is on the other day!" or something like that + "the new legs" scene + Goody's runaway from a rave girl) + much, much more.
Looks like the last episode was the BEST one.
Nu chto gliadite? Ne poluchali davno?