This is the third adrenalin-pumping outdoor sports adventure in the Take It to the Extreme series with best friends Peter and Jake. It's summer vacation, and when Ron, a former guide with Sam's Adventure Tours, invites Jake and Peter to help develop a mountain bike trail in in British Columbia, near the American border, the boys can't believe their luck. Or so they think.

As they start working hard in an isolated park, the boys sense that Ron might not be telling the truth and they begin to question his motives. When Peter tells Jake about his misgivings, things start to heat up. Join the boys as they plunge into the mountain-biking descent of their lives.