Cupcake is a girl from the future with magic powers and a time machine.

Fonzie and his friends are visited by Cupcake, a girl from the future who pilots a malfunctioning time machine. After Fonzie repairs the machine to get her back to the 25th century, a subsequent accident causes the group to become missing in time. The series focuses on Fonzie and his friends as they land in various periods in time, attempting to return to 1957 Milwaukee