Third Watch is een Amerikaanse dramaserie van de zender NBC. De serie ging in première op 23 september 1999.
Third Watch volgt de belevenissen van politieagenten, brandweermannen en ambulancepersoneel in het fictionele 55th Precinct. De dienst van het personeel loopt tussen 3.00pm tot 11.00pm, de zogenaamde Third Watch.
Doherty shows his bravery trying to save the mother of two young children from a fire. Meanwhile Bosco and Faith are out looking for the man suspected of starting the fire in the first place. Davis tries to set Sully up on a blind date and after her pimp beats up Malcolm's sister they try to find him before he kills the man who did it. Carlos' girlfriend problems escalate and Doc's relationship looks like going to the next stage.