An alien couple with cone-shaped heads from the planet Remulak is mistakingly ditched on Earth. While waiting to be recalled to their mother planet, they start a family and have a little daughter. They try to adapt to Earth's customs by living in middle-class suburbia. Meanwhile, their daughter grows up to be a teenager who has difficulties fitting in with her peers and accepting the fact that at some point, she has to return to Remulak with the rest of the family.