Two boys blast off in a space ship disguised as an ice cream cart to help their friend from the planet Martinea search for a new source of Secret Power Z.
When the departure of their plane from New York to Albany is delayed for an hour and a half, a little boy, his grandmother, and his friend from outer space use the time to take a quick trip to London in the friend's space ship.
When a junior scientist explorer from the planet of Martinea crashlands on Eddie's grandmother's farm, Eddie spends his summer searching for a way for Marty to get back home again.
While a school group is visiting the great temple at Nara, one young Japanese boy becomes separated from the Group, and, while finding his way back to the bus, helps a lost deer and two lost North Americans.
