A murder in a local park points to someone dressed as The Night Keeper, an obscure TV Superhero, setting Charlie and Rex off to find a vigilante roaming the streets.
- Show Within a Show: The Night Keeper is a fictional superhero that was the host of an anthology movie program of the same name, with his persona being used by someone to commit crimes in the present.
- You Have to Believe Me!: The SJPD crew initially has a hard time believing the mugger they arrest, due to his claims of someone dressed as a superhero having murdered someone instead of him. They come around once they realize that the deep stab wound in the victim's chest required considerable strength, which the mugger simply doesn't have.
