When Jimmy, Carl and Sheen learn of the opening of Retroland, an amusement park, popular kid Nick Dean convinces the boys to sneak out and attend.
There are quite a few extended episodes which are very well written and there was a lot of effort put into the creative story lines.
Its voice cast includes , , , , and.
Throughout the show, various mishaps and conflicts occur on these adventures, as Jimmy's various inventions go awry.
And though the computer animation may seem a bit freaky for old-school animation fans, it does allow for quality special effects.
On the return trip to Earth, Jimmy reconciles with his parents, admitting that despite his intelligence, he still depends on them.