Lena and Ian gag (literally, so be warned⚠️ ) as Mr. Schue tries to get his groove back and further proves why he should not be alone with children in the process. Plus Mercedes has a crush on Kurt and the Unholy Trinity tries to sabotage the Glee Club from the inside. Unfortunately this quality B Plot takes a backseat as Lena and Ian try to unsee the horror that is the Acafellas and William Schuester's fedora.