Clueless McGee and the Inflatable Pants

Fifth-grader PJ "Clueless" McGee is convinced he deserves a trophy for his Ninja Warz video-game skills, so he enters the school science fair with a magnetic pickle to win one. When the science-fair trophy disappears, Clueless finds himself accused and turns to his private-investigator father for help, writing letters that mix school life with detective work. He soon discovers the theft is tied to a prank involving a pair of inflatable pants, and he must track down the real culprit to clear his name.