After a minor mountain climbing accident, Slam develops a fear of heights that interferes with his bicycle racing and other activities, until his friend Dozy suggests that he think of the fear as a computer program that he can quit whenever he wishes.
Slam Duncan and his mountain biking Chain Gang stage a hunger strike to save their racing hill from developers, hoping their appetite for biking will outweigh their appetite for cheeseburgers and French fries.
Slam Duncan and his fellow mountain bikers, having just learned how to ride the giant jump, the Dragon, are now determined to out-jump their arch-rival, Punk Tuer, whose bike has a secret weapon.
Although Slam Duncan and his fellow mountain bikers have accused friend Fiona of sabotaging their practice track, she comes to their aid in an important race against their arch-rivals, Punk and Dyno.
Slam and the father of his arch-rival Punk have both seen the course of a new cross-country bicycle race before it is announced, and Slam must decide whether or not to tell his friends and start practicing there, even though logging in the area would make it dangerous to do so.
Bored when their practice hill gets buried in snow, Slam and his friends try snowboarding instead and blame Naomi for everything that goes wrong, but when Slam tries to make up with her by bringing a set of the bicycle snow tires his father devised, things go from bad to worse.
