Erik Charles Nielsen

Señor Chang (Ken Jeong) has become the teacher from hell, and the group nominates Jeff (Joel McHale) to intervene. Meanwhile Troy (Donald Glover) and Abed (Danny Pudi) have trouble with a lab rat experiment, and Pierce (Chevy Chase) helps Shirley (Yvette Nicole Brown) with public speaking.

Seeing how everyone on campus makes fun of Fat Neil, Jeff decides to do something about it.

As Annie recruits Abed and Troy for a psychology class experiment, Jeff and Shirley bond over their mutual fondness for gossip.

Annie convinces the group to put on a middle school anti-drug production, but finds it continually derailed by Pierce's efforts to give himself a better role. Meanwhile, Chang attempts to connect with Shirley, while a prank involving Britta's phone puts Jeff in an awkward situation.

Dean Pelton's army surplus party food sparks an outbreak of zombie-ism at the Greendale Halloween party.

As Pierce volunteers to compose a new school song, a cheating episode in Spanish class leaves Jeff defending Britta before a disciplinary tribunal.