Police officers join forces with a SWAT team to catch a homicide suspect; the fire department attempts to pull a man from the Mississippi River; EMTs offer comfort to victims.

EMTs deal with strange calls on the night of a full moon; two fleet-footed police officers maintain their perfect record in running down suspects; a fire chief faces his fear of rats.

Justin and Randy pursue a suspected car thief; both EMT teams receive emergency calls involving children.

Suspected drug dealers are hunted by the police; a violent schizophrenic threatens a group of partygoers.

Police and EMS teams in New Orleans deal with armed robberies and shootings on New Year's Eve; Gavin returns to work.

Mardi Gras proves hectic for the responders, a man impales his hand on a fence, while another is stabbed in the face. The search for armed robbers leads to a high-speed chase.

This episode, a high-speed chase leads to a shootout with SWAT officers, and a woman loses her eyeball in a fight.

An accident victim's arm is cut to the bone; a man falls off a ladder and lands on a roof.

A beloved police officer is shot and killed while on duty; officers come under fire during an attempt to serve a warrant; a bicyclist's leg is mangled in an accident.

Titus and Dan assist a woman who was stabbed in the face; a car chase ends with a major accident.

A woman stands to lose her arm following a bloody barroom brawl; a first responder is attacked while he attempts to provide aid at the scene of a car accident; a teenage bike thief receives some tough love.