Potter, Noel Gyro

Marshall and Art, brothers who hold black belts in karate, help new student Oren understand that painting on public buildings is wrong, and volunteer to help him get his work seen by the right people.

Marshall and Art, brothers who hold black belts in karate, are walking their friends home when a stranger tries to trick them into getting into his car, but the boys, having learned all about stranger danger from their parents, run quickly home to safety.

Brothers, Marshall and Art, learn that most problems can be solved without fighting when they, along with new friend Brian, meet a group of bullies after school.

Marshall and Art, brothers and black belts in karate, help find their little brother at the mall.

While practicing his karate kicks in the park, Marshall makes a new friend, Tate. At first, Tate is reluctant to talk to him - she knows firsthand that not everyone is friendly to a person who is differently-abled! Marshall, Art, and their friends prove to Tate that she's a kid, just like them.

Walter Dibble desperately wants to play basketball, but he can't dribble, so his friends Marshall and Art suggest they join in a neighborhood baseball game to get his mind off his problem; but when Walter takes the mound, everyone is in for a surprise.

Marshall and Art have learned about good sportsmanship from their karate lessons, but the coach of their new soccer team cares more about winning than being a good sport.