At Sifu Faiza's Kung Fu School, kids learn to be strong and fast. They also learn to be smart, cool-headed, and honest. So Joy, Adam, Sam, and Amy are surprised when the key to the school is stolen - as well as all their kung fu gear. Now they'll have to use all kinds of calculations - addition, subtraction, multiplication, and division - to figure out the clues, follow the thieves, and find... The Lost Key.

Somebody has stolen money from the soccer team. Everyone thinks Tom, the team's big bully, did it, but he says it wasn't him. Should Adam, Amy, Joy, and Sam believe him and help? They will have to figure out how much money was stolen - and also why! The kids work with dollars and cents to find The Hundred-Dollar Robber.

Sam's little sister Michelle thinks there's a ghost in the creepy old house their dad bought. With help from a couple of friends on the soccer team, Sam, Amy, and Michelle use an old ghost story - plus measuring tools and calculations for distance, volume, and perimeters - to figure out the truth behind... The Secret Ghost.

Is what Adam and Tom overhear true? Is Sifu Faiza selling the kung fu school? And can they find a way to change her mind in time? All the kids get together to help, but they'll have to figure out a mysterious puzzle about hours, minutes, and temperature to find the unexpected solution in... The Kung Fu Puzzle.

The science club has created a big "book bandit" sculpture in the public library. But how did they get the sculpture in through the tiny library window? The librarians offer a prize to whoever can figure out the puzzle. The kids from Sifu Faiza's Kung Fu School know they can win, but it will take all of their geometry skills plus some unexpected cooperation to size up...the book bandit.