Detentionaire Episode 18 Double Date Episode Title:Double Date.Episode Description:When Biffy misses detention, Lee goes of to find him. Brandy decides it's also time to start patching up their relationship and a series of stake-out dates soon expose Biffy's secret. They are forced to bring Holger and a Mathlete, who are having a date. Lee and Brandy find Biffy at a building whose logo resembles the symbols on the materials used in the prank. Biffy turns out to be visiting his parents, who own the building. Lee has no other choice than to find out what happened to the Amazing Finnwich.