Environmental Science

Dean Pelton kicks off Green Week with a name change and a fake Green Day concert.

Chang assigns a massive essay after Annie questions his authority in Spanish class.

The study group discusses their impossible workloads and decides Jeff must talk to Chang.

Jeff initially refuses to talk to Chang but gives in when the group threatens to stop helping him.

Jeff uses psychological tactics to bond with Chang over his failed marriage.

Abed and Troy train a rat to respond to a song for their biology lab.

Jeff agrees to hang out with Chang, who then cancels the essay for Jeff only.

Jeff lies to the study group, claiming Chang yelled at him and he got no results.

Annie practices her marketing presentation with Pierce's help, struggling with filler words.

Chang teaches a Spanish lesson while the group worries about the essay.

Jeff goes out with Chang and gets an A on his essay, but the group is suspicious.

The study group confronts Jeff about his deal with Chang, leading to a heated argument.

Pierce rants about his seven divorces and leaves the study group.

Pierce confesses his loneliness to Jeff and asks him to fill the void in his soul.

Pierce gives Annie a Nicholson quote for her presentation but asks for secrecy.

Abed asks Jeff for help finding the rat, but Jeff refuses.

Abed searches for the rat while the group decides to study instead.

The fake Green Day band performs and Chang uses the concert to contact his wife.

Annie gives her brownie presentation, struggling but using Pierce's advice.

The escaped rat appears during the concert, causing chaos.

Chang reconciles with his wife, Jeff is forgiven, and the group plays a water gun fight.