Jeff represents Shirley in a dispute with Pierce, who, in turn, retains the services of Jeff’s former colleague. Elsewhere, Vice Dean Laybourne makes one last attempt to lure Troy to the Air Conditioning Repair Annex.
The group plan a sneak attack to loosen Chang’s grip on Greendale. With Chang’s birthday plans serving as a distraction, Jeff and the gang make their move. Troy, meanwhile, turns to the Air Conditioning Repair Annex for help with the plans
Pierce fights for his inheritance after being summoned to Hawthorne Enterprises by his deceased father’s right-hand man. The study group tag along to offer their support and soon get involved in the battle.
Abed develops a conspiracy theory and determines that Dean Pelton is an impostor. His search for the truth, however, lands him in mandatory therapy sessions after he’s caught sneaking around campus.
The death of a classmate gives Britta a chance to play counselor to the others by using the psychology lessons she’s recently learned, but Jeff appears unaffected by the loss. Elsewhere, Chang makes a play to gain more power over campus security when the memorial service turns into a riot.
When the group’s science project is smashed, they launch a hunt for the culprit and hold a trial, over which the reluctant Professor Kane presides. But Jeff soon realizes there’s much more to the story than anyone realizes.
Annie and Abed spend some quality time together in the Dreamatorium for a simulation of “Inspector Spacetime.” The exercise takes a turn toward the serious, however, with examinations of the study group and insight into Abed’s personality.
Annie, Troy and Abed try to help Britta avoid an old flame who has returned to town, while Jeff and Shirley set out to catch a glimpse of the mystery man. Elsewhere, Laybourne turns to Dean Pelton for help with his pursuit of Troy.
Conclusion. The war between Abed and Troy intensifies, prompting Jeff to try to negotiate a truce between the former best friends while the rest of the group choose sides.
Part 1 of 2. A sandwich shop opens in the cafeteria, drawing the ire of Shirley, Pierce and Britta, who scheme to close the place down; Laybourne tries again to convince Troy to join him; and Abed and Troy battle over competing blanket forts.