On the day of Daylight Savings Time, Little Pete tries to have a time travel adventure so legendary that it will be memorialized on a pen. Meanwhile, Big Pete has forgotten about the usual time travel adventure he shares with his brother to ask Ellen on a date.
As summer ends, the Petes and Ellen try to befriend Mr. Tastee the ice-cream man, but they soon learn that being an ice-cream man is supposed to be a lonely job.
It's just another ordinary Saturday in Wellsville, or so it seems. Big Pete needs a haircut, Ellen must work, Wayne has new shoes, Monica is on the hunt for the elusive ninja, and Stu is stuck at a never-ending red light.
Believing that his early bedtime has resulted in countless hours of lost fun, Little Pete defies the International Adult Conspiracy by attempting to stay up 11 days in a row.
On April Fool's Day Little Pete is determined to pull off the biggest prank Wellsville Middle School has ever seen: sabotaging Johnny Earwax and the Up With Personal Hygiene Singers. His only problems are Pit Stain and his cronies and Principal Ken Schwinger.
Super Villian John McFlemp convinces everyone in Wellsville that Artie's a danger. The International Adult Conspiracy chooses Mr. Wrigley to get rid of the Superhero.
Little Pete controls underground radio station WART along with Artie. Little Pete then decides to start his own band. However, the neighbors aren't too tickled about the racket every day and night as they rehearse.