<p> Season 4, Episode 1: Fun Run   Original Air Date—27 September 2007   Michael accidentally runs over Meridith in the parking lot, and his guilt causes him to organize a 5-K run for her. Dwight and Angela have a falling-out after he kills her cat, and the Jim and Pam's relationship is discovered.   Season 4, Episode 2: Dunder Mifflin Infinity   Original Air Date—4 October 2007   Michael fe... </p>
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