CSI: New York, the third incarnation of the CSI: Crime Scene Investigation franchise, is a crime drama about forensic investigators who use high-tech science to follow the evidence and solve crimes in The Big Apple. Detective Mack "Mac" Taylor is a dedicated and driven crime scene investigator who believes that everything is connected and for everyone there is a story. He and his partner, Detective Stella Bonasera, a workaholic and a jack-of-all-trades, share a passion for the job. They lead a team of experts amid the gritty and kinetic city that never sleeps. Their team includes Danny Messer, a Brooklyn-born investigator with rugged good looks, an unflappable spirit and a colorful family history, and Dr. Sheldon Hawkes, a reclusive coroner who walked away from a promising surgical career after the traumatic loss of two patients. Joining them is homicide Detective Don Flack, an edgy, hardcore investigator with a quick wit, impressive forensic insight and limited patience with potential suspects. Rounding out the team is Aiden Burn, a smart and sexy investigator whose chameleon-like behavior allows her to adapt to any situation at any time. These skilled investigators, who see New York City in a whole different light, follow the evidence as they piece together clues and eliminate doubt to ultimately crack their cases.
Ellie, a recovering drug addict, has just moved to a new city with her two teenage children. She has struggled to stay sober in the past and is determined to make it work this time, finding a stable job and regularly attending her meetings. Unfortunately, new friends, a new job, and the chance of a new life, can't keep Ellie from slipping once again. Her life changes when she meets Christopher - a different kind of addict - which forces her daughter and son to accept a new version of Ellie.