Watch the special expanded series finale online now.
THE SCENE: Greendale Community College's biology classroom. THE CRIME: An innocent, unsuspecting yam, completely destroyed. Jeff, Annie and their professor are at the crime scene, surveying the damage of what used to be their final project: a yam about to sprout. But it appears as though overnight someone destroyed their project, and their chances at an A. Noting that it was an innocent mistake, the professor agrees to give them a passing grade for the efforts. But for Annie, a passing grade just isn't good enough. Determined to get an A, Annie vows to bring the perpetrator to justice.