It was only a boring travel through the Nevada desert…before Sonderberg family picked up a beautiful young hitchhiker named Mouse and found themselves on the wild, careening ride down the leave ramp to Hell. It appears the entire world is normally doomed unless Mouse, a transdimensional alien, will get and heal the dying cosmic Spinner who handles the fabric of truth. Suddenly attacked with a demonic gas place attendant, axe-wielding rats and fire-breathing cops, the Sondberg family must become warriors in a now-mystical electric motor home and battle pangalactic diners, strange worlds, difficult voids, and brain-bending realms of madness. They’re driving into a superb nightmare to save all creation on the Vanishing Stage on the Cosmic Street…which happens to be U.S. Interstate 40!