Emily Edison leads an action packed, double-dimensional life. Her dad is a super genius appliance repairman, who opened a portal with his nuclear powered vacuum cleaner. After stepping through it, he met, fell in love with, and married Emily's would be mother from another dimension. They had Emily and lived happily for a few years. However these interdimensional romances never last, and Emily's parents divorced. Since then, Emily has divided her time between two worlds. Her hectic teenage life is becoming a blur - homework, slumber parties, unrequited crushes, school dances, and on top of all that: A jealous alternaverse grandfather, who hopes to bring her home by destroying the earth.

Reality hangs in peril, and Emily must use her other worldly powers to save the planet she calls home in the ultimate interdimensional custody battle.