Barbara struggles to connect with the students in her extra-curricular music class. Gregory and Melissa attempt to decode the filing system left behind by Ava. Meanwhile, Janine discovers a secret side to Ava in her attempts to get her back as principal.
A group of dedicated, passionate teachers and a slightly tone-deaf principal are brought together in a Philadelphia public school where, despite the odds stacked against them, they are determined to help their students succeed in life. Though these incredible public servants may be outnumbered and underfunded, they love what they do, even if they don't love the school district's less-than-stellar attitude toward educating children.