Janine is thrilled when Ava asks to help her teach the after-school step class, but the two don't see eye to eye on how to run the program. Later, when Barbara, Melissa and Jacob plan an "eat-off" to decide who makes the best pizza in Philadelphia, Gregory is forced to reveal a secret. 

When the students start participating in a new online trend that causes disruption to the school, the teachers band together to put an end to it. Meanwhile, Mr. Johnson provides comforting life advice to Gregory; and later, the teachers finally meet Jacob's boyfriend, Zach, who joins in to help stop the students "desking,".