As with many Southern California communities, Diamond Bar's recorded history began with a Spanish land grant. One of the area's first settlers was Jose de la Luz Linares, who founded Rancho Los Nogales (Ranch of the Walnut Trees) on the 4,340 acres granted to him by Mexican governor Juan Alvarado in 1840. The grant included Brea Canyon and the eastern Walnut Valley, a portion of which became the Diamond Bar Ranch, founded by Frederick E. Lewis II in 1918. In 1956, the area looked much as it did in 1840, its golden hills peppered with green stands of oak and walnut trees and grazed by large herds of cattle. In that year, the Transamerica Corporation paid $10 million for 8,000 acres of Brea Canyon, with plans to construct Southern California's largest master-planned community and name it Diamond Bar. Incorporated on April 18, 1989, the city of Diamond Bar is home to nearly 55,000 residents and is located at the crossroads of the Orange (57) and Pomona (60) Freeways on the eastern edge of Los Angeles County.

A sharp and witty post-apocalyptic high school comedy drama Sarabeth Lewis knows that anyone who's anyone will be at Teena McAuley's party this weekend. As it turns out, anyone who isn't anyone will end up in Teena's basement. This will include Sarabeth. But come the morning after, they're actually pretty glad of that fact... You know it's going to be a bad day when you emerge from a party you're not supposed to have been invited to in the first place to find the house destroyed and almost everyone you know in bits. Quite literally, in Sarabeth's case. Whilst she and the rest of the school's outcasts have been locked in the basement, the world appears to have ended - Sarabeth, Leo, Evan and Teena (who accidentally locked herself in the basement too...) have unwittingly become survivors of an alien invasion. Now they'll have to put their differences aside for long enough to save their town, themselves and quite possibly the world - and use everything they've got (including glittery face-paint) to squish some serious alien butt.