After walking away from his death by accounting job, 35-year-old Alex (Allen Covert) is now a video game tester at Brainasium, the company responsible for the worldwide gaming phenom of Eternal Death Slayer. At 35, he may be the oldest tester in the business (he's called "Gray Bush" by his co-workers), but he's also the best. But when his roommate fails to pay the rent for 6 months, Alex unfortunately finds himself on the street. His last resort is to move in with three hot babes - that's what he tells his friends. In actuality, he finds himself living with his sweet and loving 80-year-old grandma Lilly (Doris Roberts) along with her two roommates: the "been there, done that repeatedly" octogenarian Grace (Shirley Jones) and the not-quite-all-there, overly medicated Bea (Shirley Knight). Lilly dotes on Alex and keeps him housed and fed - in exchange for a few simple chores around the place. As Alex tries to bag his new hot boss while continuing to work in secret developing his own game, Demonik, jealous nerdboy and creator of Eternal Death Slayer, JP (Joel Moore), swipes Alex's Demonik and tries to pass it off as his own. Soon it becomes a battle of Gen-Xers versus gin players when the boss produces a secret weapon: Alex' grandma (and now master gamer) Lilly.