Tammy is having a bad day. She's totaled her car, gotten fired from her job at a burger joint, and finds her husband getting comfortable with the neighbor in her own house. It's time to take her boom box and book it. The bad news is she's broke and without wheels. The worse news is her grandma, Pearl, is her only option-with a car, cash, and an itch to see Niagara Falls. Not exactly the escape Tammy had in mind. But on the road, with grandma riding shot gun, it may be just what Tammy needs.