As Big Jim continues to secure his power and takes steps to eliminate Barbie, the Monarch is crowned and the Dome sends a familiar face to Joe and Norrie to reveal the secret of the Dome.moreless
While Big Jim convinces the townspeople to hunt Barbie down for his alleged crimes, Joe and Norrie move the mini-Dome
Big Jim frames Barbie for the deaths of his enemies, while Junior abandons the group and they discover the consequences when a storm gathers.
Julie learns about Peter's past, while Junior gets a promotion. Meanwhile, Maxine forces Barbie to fight in a staged arena contest.
Big Jim receives an unexpected visitor from his past, one with connections to another person trapped beneath the Dome. Meanwhile, Joe and Norrie find the source of the Dome in Joe's barn, and Barbie and Linda encounter someone with a connection Chester Mill's drug dealer.moreless
Ollie takes control of the town's water supply and Big Jim must join forces with Barbie and Linda to get it back before his own control of Chester's Mill is threatened.
While Harriet goes into labor, Joe and Norrie investigate the source of the Dome in an attempt to save themselves and their fellow townspeople.
When the townspeople realize that their food and water are running out, they begin looting Chester's Mill for whatever remaining supplies that they can find.
Barbie receives word from the outside that the government is drawing their men back as the Dome interferes with magnetic fields.
When Chester's Mill is stricken by a meningitis outbreak, the townspeople panic when the clinic runs out of medicine and the Dome prevents anyone from bringing in new vaccine. Meanwhile, Julia learns the secret that Peter was hiding from her, and Junior is left in charge.moreless
Joe ends up holding a party at his home where the town's teenagers gather to enjoy one of the few generators in town after the power goes out. Meanwhile, Barbie and Big Jim search for Paul after he escapes custody, and Junior looks for a way out of Chester's Mill.moreless
As the reality of their situation settles in, the townspeople's tempers start to fray. Meanwhile, Big Jim sends Reverend Coggins to remove the evidence from Duke's house, and Junior stalks Barbie.
The townspeople of Chester's Mill discover themselves unexpectedly cut off from the outside world when an invisible dome springs up around the town, sealing them in... with limited food, water, air, and medicine.moreless
A group of protesters breaks into the NYPD precinct after the police are suspected of killing an unarmed man. Mac and Flack find themselves caught up in the chaos as the team makes a fast move to try and solve the case. On the personal side, Mac contemplates his future with Christine.moreless
At Valentine's Day the CSIs get a taste of both the sweetest and the sourest that life can offer as they work on three twisted tales of love gone wrong.
A couple of graffiti artists, who vandalize their district using the tag 'Murderer', will find their sign a very close reality when a body is dumped at their feet.
The CSIs lead an investigation after the body of a masked man found at the bottom of a notorious skyscraper adds to the mysterious count of deaths that form part of the history of the building. Meanwhile, Jo runs into a stranger with an unexpected link to her past while enjoying a day off.moreless
The CSIs with the always difficult task of working a case where an officer has been shot: talking to the family, processing the scene and getting to the bottom of the truth. The case is particularly hard on Lindsay who has strong and fond memories of the victim.moreless
Two men are found dead with a common feature: both have been killed using unconventional methods. Meanwhile, $1 million anonymous checks are left around the city by someone known as the Guardian Angel.moreless
Detective Lovato's past as an undercover officer tangles up with her present duty when one of the gang members she ingratiated herself in and developed feelings for turns up tortured and killed.
The CSIs realize that the latest bodies discovered answer to some psychopath reenacting the game of CLUE in real life.
An cold case unsolved for twenty years about the disappearance of a young boy suddenly heats up again when the main suspect in that long ago crime is found dead.
When evidence surfaces in form of several pictures at a crime scene on the Brooklyn Bridge, the CSIs rush to San Francisco to search for a 16-year-old girl who might be dead already. The case hits home for Jo.moreless
The team has to try and stop serial arsonist Leonard Brooks after he starts to use fire as a weapon to hurt people from his dark past.