
In "Time After Time," Sam and Dean are divided by 68 years of time when Dean is transported back to 1944 along with the god they were hunting: Chronos. And yet, the bond Sam and Dean share is showcased beautifully throughout.
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The Mentalists starts with Sam and Dean separated after the revelation that Dean had killed Amy behind Sam's back. A week and a half later finds both brothers drawn to Lily Dale, due to the strange murders of mediums. Unlike previous episodes where the brothers are repairing a rift, the tension is an undercurrent through out. It is not wrapped up in the beginning before the case begins or dealt with at the end. Dean imposes himself into Sam's investigation, and they immerse themselves into the case completely.
"The Girl Next Door" revives several issues that have been lingering since the Pilot itself. While the boys recover from the Leviathan attack, Sam investigates murders linked to a case he solved as a teenager. The monster this time is a kitsune, and they feed on human pituitary glands to survive. But as Sam says, "nothing in our lives is that simple," and that holds true for this very case.