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Season 6, Episode 16

Episode Title: Allison Rolen Got Married

Air Date: 2010-03-12

Overview:

It's 1993, and a pregnant Allison is about to marry Joe. But when she has a premonitory dream about one of the wedding guests, and Joe treats the incident with awkward disbelief, Allison gets a bad case of cold feet just as the wedding march starts to play.