Xtreme mysteries

When someone begins vandalizing the classroom and home of Wall's English teacher, the police begin to suspect Wall, so he and his friends work together to find the real culprit.

The X-Crew investigates when Kevin is nearly buried in a man-made avalanche during the Winter X Games.

Kevin and Will are volunteers at the Summer X Games and become embroiled in a sport-climbing mystery.

While on a mystery weekend sponsored by a wakeboarding manufacturer, Jamil and his friends find themselves trying to catch a thief.

Jamil's father is including snowboarding in the Hoke Valley Resort Spring Festival for the first time, but someone is trying to get snowboarding banned by spreading false stories in the local press.

A fanatic threatens sports teams which are not extreme.