Season 2 of 90210 wastes little time with ordinary moments. It ramps up the dramas for this new generation of West Beverly Hills High BFFs, frenemies, tormentors, and their tormented. In the latter category is Annie (Shenae Grimes), the principal's daughter, who is on the wrong side of Meanest Girl Naomi (AnnaLynne McCord) after Annie called the police to break up her party at the end of season 1. Here's a tip: You don't want to make Naomi mad, especially if there happens to be an illicit naked pic of you that she can sext to the world. But Annie doesn't have a monopoly on trouble. Between substance abuse, marital discord, gambling addiction, breakups, hookups, sexual harassment, blackmail, and that oldie but goodie, abstinence versus sex, this will be, in Naomi's words, "a real crazy year" for every character. This reboot of the era-defining Beverly Hills 90210 found its footing this season thanks to a more gelled ensemble, sharper writing, juicier plot developments, and key cast additions, including Trevor Donovan as Teddy Montgomery, a tennis star with movie star father issues, whom Navid (Michael Steger) sees as a rival for Adrianna (Jessica Lowndes); Gia (Rumer Willis), a lesbian crushing on Adrianna; Ivy (Gillian Zinser), a tomboy surfer whose pursuit of Liam (Matt Lanter), Naomi's ex, leads her into the arms of Dixon (Tristan Wilds), Annie's adopted African-American brother; and Jasper (Zachary Ray Sherman), the drug-dealing and none-too-stable nephew of the homeless man whom Annie hit with her car last season. A prime-time soap is only as compelling as its villains. Back from season 1 to wreak more havoc is Naomi's manipulative sister Jen (Sara Foster), who picks up the slack whenever Naomi shows signs of having a heart or conscience. Sleeping with Liam, as she did last season, was only the beginning of the fresh hells she connives, from stringing along teacher Ryan (Ryan Eggold) to kicking Naomi out of her house ("Just call me karma," she tells her sister, "and karma is a bitch"). Special features include several audio commentaries, a behind-the-scenes season retrospective, a set tour, and other fan-tastic featurettes about the look of the show, its most seesaw couple, and the swank Beach Club. With this instantly addictive sophomore season, the torch is officially passed to "the Class of 2011." --Donald Liebenson