First half of the fourth season of the spin-off series in which New York forensic detectives employ the very latest hi-tech methods to catch criminals in the Big Apple. The head of the lab is no-nonsense First Grade Detective Mac Taylor (Gary Sinise). Taking a scientist's eye to crime, Mac believes that everything is connected - no matter how big or small. Originally from Chicago, his military background fast-tracked him through the force, leading him ultimately to the crime lab. Mac's trusted second-in-command is Second Grade Detective Stella Bonasera (Melina Kanakaredes), whose half-Greek, half-Italian heritage is New York through and through. A tough and uncompromising officer, Bonasera is a match for anyone in and outside the lab. Episodes comprise: 'Can You Hear Me Now?', 'The Deep', 'You Only Die Once', 'Time's Up', 'Down the Rabbit Hole', 'Boo', 'Commuted Sentences', 'Buzzkill', 'One Wedding and a Funeral', 'The Thing About Heroes...', 'Child's Play' and 'Happily Never After'.