Detentionaire - Season 1 Episode 9 15th Graders

Lee is given one day of amnesty from detention as per the rules of the Students charter of rights. But he can't enjoy the day off as he's accidentally incurred the wrath of the fearsome 15th graders when he enters their territory chasing a lead. During the brief period of time in which the Tazelwurm had Lee's phone someone programmed in a series of numbers, a locker number and combination. Inside said locker Lee finds his original bag from the day one prank. However Lee has more pressing matters to attend to, he must deal with the 15th Graders or else they will daunt him for the rest of his high school life. Lee is saved from the 15th graders by the Tazelwurm just in time to avoid further grounding from his mother.