Psych: Season 2, Episode 16

2 - 16: Shawn (and Gus) of the Dead

As Karen Vick makes a surprising announcement about her future, a 3,000 year-old mummy disappears from a museum. Shawn reasons that the mummy walked out, leading him and a terrified Gus to believe that an actual mummy is on the loose, even more so after the night watchman is found strangled to death. In the meantime, Henry receives a phone call which prompts Shawn to meet him, "without Gus," and as the second season comes to a close, Shawn's entire world turns on its head.