Overuse of the word narc. Delinquents perennially in leather. Lines such as ''he's gonna sing like a bird.'' 21 Jump Street: The Complete First Season was hardly Shakespeare; still, revisiting the old precinct where cops go undercover in high schools to foil crime does rekindle midsummer night's daydreams. The reason to watch Jump, one of the first police dramas to assemble a hip, young cast: chiseled rookie Johnny Depp. And yet the show started out unarrestingly, with overacting (by otherwise fine actor Frederic Forrest, playing the cheesy hippie captain) and flat plots (the kid with a crush on...a teacher). But the sting picked up speed when the appropriately deadpan Steven Williams replaced the cartoonish Forrest and a hokey yet amusing repartee grew between pretty-boy Depp and lug-head partner Peter DeLuise. It's hard to deny the Afterschool Special appeal of Depp slumming it in an ep featuring, say, Blair Underwood as a student who holds hostages in exchange for pizza.
EXTRAS Dry chats with actors Holly Robinson Peete and Dustin Nguyen and a lively, self-deprecating commentary from DeLuise.

