INFECTION SPREADS AT GREENDALE COMMUNITY COLLEGE CAUSING A WALKING NIGHTMARE -- Pierce (Chevy Chase) and a few other Greendale students ingest a biohazard substance at the school Halloween Party, causing them to exhibit flu-like symptoms and begin turning into zombies. It is up to the rest of the gang to save themselves and the school when Dean Pelton (Jim Rash) locks them in with the zombie-infected student body. Joel McHale, Allison Brie, Yvette Nicole Brown, Donald Glover, Danny Pudi, Gillian Jacobs and Ken Jeong also star.
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