Tonya is forced to take drastic action after a scandalous discovery, and the school is plunged into darkness after a blackout. Preston keeps a keen eye on Tonya, but when Schuey continues to cause chaos, Preston takes the law into his own hands. Neil and Coral butt heads, and Libby goes to extreme lengths to keep her dad on side. Elsewhere, Kai's presented with an exciting idea regarding his future.