RDex is a runaway, but not your typical runaway. He's a young robot alien who has stolen a rocket in order to rescue his teacher, who he thinks is being held as a prisoner on earth. After crashing on earth, RDex is befriended by two middle graders, Tommy and Hawk. RDex lives in a shed in Hawk's backyard, where he watches old cowboy movies for entertainment and drinks cans of oil to quench his thirst. When Tommy and Hawk disguise RDex as a human and bring him to class, that's when the fun begins!
Will Rollins, a greenhorn - cheechako - (chee-chock-oh) is miserable in his new Alaska life. In addition to the bully after him, he can't seem to make any friends in school and doesn't know a thing about dogsleds, riverboats, hunting, or surviving at 40 degrees below zero. When Will darts out alone onto rampaging river ice to rescue a stranded dog, his bravery wins him a valuable, trained sled dog, Blackie, and a new human friend as well, an Alaskan Indian boy named Elias. It's Elias who challenges and inspires the cheechako to become a rugged outdoorsman and a real Alaskan.