Plot summary
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." As the second season comes to a close, Shawn's entire world turns on its head when a surprise guest shows up at Henry's door.
Credits
Adapted from Wikipedia contributors, Psych season 2. HTML formatting and reference markers removed.