When Carlos hits a pregnant woman's car while driving, she begins labor and he tries to do everything in his power to keep the baby alive. Bosco tracks a witness to a car-fire death who skips custody while going to the precinct to have him look at headshots.
Doherty and Kim risk their lives and disobey orders in an effort to save people trapped in a collapsing building. Yokas and Bosco go toe-to-toe with a television reporter.
The suicide of a former partner sends Sully into a path of life evaluation. A car blocks the rescuers in the station.
A shift with Candyman alters Ty's view of both Candyman and Ty's father. Sparks fly between Doc and Morales.
Casualties result in the pursuit of a group of automatic weapon armed bandits. Bobby tries to talk sense into his fugitive brother.
A lot of people spend their Valentine's Day broken hearted and seeking comfort in the bottle. The search is on for a gunman who ravaged a gay wedding.
When Sully loses his gun in a chase, a man tries to help him out by giving it back, but Davis, new to the scene, ends up seriously wounding the man and nearly starting a riot. Bobby and Kim come to the aid of a boy trapped and freezing to death.
Doc's kindness towards some young gang members may not lead to positive results. Bosco scams some thieves, but then is worried when they in turn decide to report the theft. Doherty ducks the muscle of the loan shark he's endebted to.
The members of the watch are assigned waiting duty outside a debate in case of emergency which gives them spare time to discuss their lives as people and emergency workers.
Doc tries to handle his father's nearness to death. Yokas is tempted by marital infidelity in the form of an old classmate. Candyman is accused of robbing a thief. The police take on the rescue team in a basketball game.
While crews scan the city for a toddler who escaped the car accident that got her family, Sully seeks vengeance against the man who attacked his parish's priest.
The firefighters of the watch are pitted against a hotel blaze while the police search for the arson suspect. Bobby tries to convince Kim of her ex's thievery.
A carjacking pursuit ends in a fiery crash and a need to rescue the criminal. Bosco tries to clean up and attend an opera with his girlfriend and her parents.
Doherty begins his day by rescuing Doc and Carlos from a fire and finishes receiving a gunshot wound. The officers trail after Doherty's shooter. Davis comes to a crossroad and must choose between being a police officer or a law student.