Episode Description: Beware, spoilers! To read - hover over the text.
One of Sam's friends from College, Zach, was arrested on charges of murder. His sister Rebecca is helping the Winchesters find out the truth and says that the killer can't be Zack because that night brother all the time was with her. The winchesters trying to figure out how he managed to be in two places at once, and surprised to discover that it was not Zach.