Underclassman

Tracy “Trey” Stokes (Cannon) is a 23-year old undercover cop and goes to Westbury School to figure out the death of a student. He becomes friends with Rob Donovan (Ashmore) and soon figures out that he has been stealing the cars at parties. Near the end, it is revealed that the principal (Bonneville) of the school had been blackmailing Donovan, and was ringmaster of the crimes. After being kicked off the force by his father-figure police chief (Marin), Trey solves the case (with the help from Donovan) and is reinstated. —Wikipedia