English teacher Simon Casey struggles through his first term at Summerdown School wondering if he really wants the job and, more importantly, if he’ll ever get to see Jenny’s bottom. Prospects on either front don’t look good. Still, sage advice from psychology tutor and best friend Susan and not-so-sage advice from fellow teachers Brian and Kurt might help. Or not ….

A new school year means new challenges for the teachers. Simon feels threatened by charming newcomer J.P., and Kurt finds dodging Carol’s affections is turning into a full-time occupation. Meanwhile, Brian is enchanted by English trainee tutor Penny—for two very obvious reasons—and Bob sdecides to get fit. Even if it kills him ….

With Simon gone, Brian and Kurt turn to his replacement for advice—the suave and morally-flexible Matt. But married Matt is much more interested in his own affairs, and it falls upon new biology teacher Lindsay to help them out. Lindsay’s funny, frank, down-to-earth and, most importantly, she’s fat—an essential safety feature for an agony aunt that ensures Brian and Kurt won’t end up fancying her. Probably.

Following the untimely deaths of Matt, Brian and Kurt, it’s left to Penny and Lindsay to make friends with the staff of Wattkins School. This proves tricky. Charming Head of English Ewan is easy to get along with (unless you happen to be Bob), but sarcastic cookery teacher Damien and neurotic R.E. tutor (and confirmed atheist) Ben take a bit more getting used to.