When Mr. Schuester gets sick, a substitute teacher takes over his Spanish class and the glee club and winds up winning over the whole New Directions clan. Meanwhile, when Sue fills in for Principal Figgins as McKinley’s top dog, she tries to flex her power on campus.

Holly Holiday returns as the sex education substitute teacher and helps the glee club out with some new numbers. On the other hand, Emma becomes the head of the celibacy club.

The glee club agrees to help raise funds for another under-the-radar group; big decisions are made and relationships are tested.

The glee club are saying goodbye to each other when two old guests come and decide to save the glee club.

With the McKinley High glee club officially at an end, past and present members of New Directions look towards the future.