After Finn and Sam find an unconventional way of controlling their urges, a few glee club members pick up on the strategy and start using it too. But when Coach Beiste gets wind of what they are up to, the glee club has some explaining to do.

Sue's "Nazi-hunting" mother, Doris shows up in Lima to check in on her girls. Meanwhile, Kurt makes an important decision after getting pushed to his breaking point, and Rachel and Finn take a big step.