Halloween provides a fitting backdrop to a night on the job that includes some chilling calls. Captain Kevin leads the fire fighters battling a blaze that's engulfed a house, and hopefully nothing more. Police officers Victor and Cedric hunt through a neighborhood in "the country" for a burglary suspect. And on the EMT Sprint Unit, Becca responds to a call she hoped to never get.

It's a full moon in New Orleans, and sure enough, all night long, the calls for the EMT's seem to get crazier and crazier: the victim of a machete hacking, the man whose finger is bitten off by a dog, the guy stabbed by a man dating his ex-wife. Meanwhile, two cops keep their perfect record of chasing down suspects in foot races intact, and a fire chief confronts his fear of rats.