Gregory is hesitant when kids start hanging out in his classroom at lunch, looking to him for advice; Barbara is shocked to find Tariq is dating the mother of one…

Diane returns to help with Crisis One intervention training for Station 19 and Station 23 firefighters. Meanwhile, Andy and Sullivan continue to be at odds, and Jack helps a young…

Doug asks Andre and Aaron to put aside their differences to help him impress a restaurant critic. Aaron learns surprising news about his mentor at Cal U, while Andre attempts…