When the school's art teacher retires, Janine is thrilled when the replacement ends up being her best friend from college, but things quickly turn sour when Sahar gets in the way of Melissa's class traditions. Meanwhile, Jacob and Barbara bond over their love for gardening and decide to start a school garden; but when it turns out they don't know how to successfully grow anything, Gregory secretly gets involved to fix all of their mistakes.

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.