is back! Well, not just yet. On Wednesday, ABC officially announced its hit new comedy series is returning for season two on Sept. 21, now airing on Wednesday nights. The announcement was dropped with a new promotional teaser for the season featuring our favorite group of dedicated and passionate teachers strutting their way back into their sacred ground with «Motownphilly» by Boyz II Men as their backing track.Sheryl Lee Ralph's Baraba tosses a shiny red apple as Lisa Ann Walter's Melissa takes an impressive bite out of a hoagie, Chris Perfetti's Jacob almost fumbles a briefcase catch, Janelle James' Ava spins the keys to the kingdom and Tyler James Williams’ newly full-time Gregory sharpens a pencil.But when Ava struggles to actually unlock the school doors, we're all reminded that school's out for summer for a bit longer.