Remember that really cute girl/guy who said they'd call – and didn't? Maybe they lost your number. Maybe they're in the hospital. Maybe they're awed by your looks, brains or success. Or maybe... They're just not that into you.

A struggling songwriter named Dave Seville finds success when he comes across a trio of singing chipmunks: mischievous leader Alvin, brainy Simon, and chubby, impressionable Theodore.