It's monster truck madness when mulleted Motor Ed and his gang steal car parts to create the most serious set of wheels ever. Kim needs the help of wheelchair bound Felix, who's not as fragile as she tries to treat him.

On the trail of a tattooed thief, Kim goes undercover as an X-Games competitor. But Ron's dreams of jockdom and the Seniors' new lifestyle prove that sports aren't the only thing that's extreme.