"The story centers around Billy Johnson, a twelve year old boy, and how their lives are changed after they are visited by a blast-from-the-past, shaggy haired purple alien! Adventures with the mischievous 'Purple' creature help the boy grow up and the grandfather grow younger. All Purple wants to do is play in a rock 'n' roll band, so Billy forms one. Purple can play music through the horn on his head and the new band create quite a sensation, especially...