Nuptial plans ruffle Syd; a radio interview with a nature-show host rattles Joanie, who's set upon by a pesky crow, a frolicsome chimp and an ornery monkey.

On Halloween, chaos descends upon the ER, where Syd copes with a stabbed mime, a man who believes he's a vampire and an injured, eerily insightful witch.

A female prisoner's medical plight moves Syd; Tina's disappearance unsettles Robbie; a shaggy dog's care requires special treatment, dictated by its snooty owner.