Twelve-year-old Alexis Evins and her older twin brothers get in big trouble when they pull a prank on their neighbor, and their father signs them up for an after-school program that guarantees to turn any kid into a successful person. All three siblings must pass the course together or be sent to private school. The "evil Evins" siblings are determined to win the program's championship despite a few enemies who want to see them fail.
Jessica, Elizabeth, and Steven Wakefield get caught up in a tangle of practical jokes after Steven announces he has found a treasure map, and the three are surprised when they find a real treasure--just not the pot of gold they were expecting.
When cousins Mike and Kate go to Kansas City for the All-Star game, they meet the son of the American League starting catcher who stands falsely accused of playing practical jokes on his All-Star teammates.
At swim camp, Squish's new friend Basil helps him avoid learning to swim with pranks that sometimes go too far, but the comic book exploits of Squish's idol, "Super Amoeba," help him deal with Basil and conquer his fear.
April Fools' Day turns into a bad day for Wagner the mouse when his best friend, Pearl the rabbit, and other children and adults at school play tricks on him.
Having broken her leg practicing for the annual Color War competition, Jenna is falsely accused of pulling a series of pranks that could get her sent home, and so, with little to lose, she begins planning her revenge.
Eleven-year-old Jenna Bloom is aggravated having her twin brother and older sister at the same camp with her over the summer and decides to exercise her own independence through a series of practical jokes that grow less and less funny to her friends.
