It's Halloween at Abbott Elementary! Janine and Gregory proudly show off their couple's costume, but it fails to translate. Meanwhile, Barbara faces pushback from parents concerned about hygiene and her beloved apple-bobbing tradition.

When the neighborhood deli is forced to close to make room for a trendy smoothie place, Melissa, Barbara and Jacob team up to fight the gentrification. Meanwhile, the district asks Ava to give a presentation to fellow principals.