It's the week of Mardi Gras and it's the busiest time of year for our first responders. Working the parade route comes with its own challenges and unique cases. Keeley treats a man who impaled his hand on a fence. While Titus and Dan have to navigate through a flood of people to treat a man stabbed in the face. But most drama happens off the parade route. Titus and Dan race to save an 18-year old shot in the head through and through. Randy & his partner Devin, search for suspects in an armed robbery, which leads to a high-speed chase.

It's all about new partnerships and life lessons. Gavin returns from work offshore and is assigned to a new partner Ted. Together, they treat a woman on busy Bourbon Street with a badly broken ankle. In the meantime, our SWAT guys head out to serve a high-risk warrant and Holly, Nick and Keeley respond to a flipped car where the driver's arm is cut to the bone. Later in the night, we return to Ted and Gavin who work to rescue a man who has fallen off a ladder and landed on a roof. Justin is assigned to a new partner and tries to maintain his track record of 100%.