Quarter-midget car racer Michael Haynes and his twin brother Mark, the team's mechanic, are used to winning their races, but when a new, unscrupulous racer starts competing, even causing Michael to be injured in a race, the twins are tempted to start using different tactics themselves.

Joe thinks of himself as "The Flash"--A hotshot basketball player who knows the coolest moves. The other members of his team aren't as impressed. Joe spends too much time trying to wow the crowd, and not enough time helping the team. At tryouts for the freshman team, Joe is quickly cut. He needs to stop fooling around and prove he has what it takes to stay in the game.

Allie loves everything about volleyball except hitting. She doesn't think she's good at it, and every time she messes up, her belief in her own abilities dwindles. Finally, she asks for help. Her idol, Nikki, agrees to coach her once a week. If Allie can learn to spike as well as she blocks, she could become one of the team's strongest players.

Every summer, Eva and Becca play softball. But this year, something strange is going on. One day at practice, the bag of equipment is missing. The next day, it's been returned. When the bag goes missing again, Eva and Becca decide to try to catch the crook. But the person they find is not at all what they expect!

Tom and Kevin have to rely on their instincts to survive when a volcano erupts while they are camping and their lives are put in danger by the lava.

Trey Smith, captain of the Wildcats and one of the best players, finds out that his cousin, Pete, is on a rival team and they are assigned to guard each other.

Four stories set around racing focus on becoming a member of a pit crew, building stock cars, working for famous drivers, and solving a mystery of who is sabotaging other drivers.

When his mother's job forces them to move to a rural area, Mason joins the Clearwater Middle School football team and finds that it will be up to him to teach them how to win.

When Ring Lake Middle School decides to host an Olympic Fest, Kyle is assigned to compete in the track and field throwing events--will practice make him good, or will he embarrass himself in front of everyone?

Twin girls Sarit and Allie have always been coached in basketball by their father, but now that their parents are divorced and he has moved away, Sarit is unhappy playing on the school team, and resentful that her sister still enjoys the game.