Dennis needs to pull off a magnificent stunt to save the skate park from closure, so Gran gives him the skateboard of the legendary Kendo 360 to help. When the special board goes missing at the worst possible moment, Dennis needs to dig deep and realize that it's the skater, not the board that's important.

Dennis is blamed for a theft he didn't commit, and Mrs Creecher's new super-powered tech specs mean she can suddenly see way too well. She teams up with Sergeant Slipper to track down fugitive Dennis who has to somehow hide from the all-seeing tech specs so he can prove his innocence and find the real culprit.