A truck carrying weapons that were confiscated from previous crimes are now back on the streets of Miami. An old enemy of Horatio’s puts the lives of two CSI’s in harms way after a confiscated missile is launched into courthouse allowing Clavo Cruz to escape during his arraignment and injuring one CSI and the fatality of another CSI.
After Frank steps on a land mine at a crime scene Horatio and the Bomb Technicians must deactivate the bomb. Delko gets hit with a large lawsuit after breaking up a domestic dispute.
After Nick is found to have been killed with all the evidence pointing to Natalia as the killer the rest of the team has been sidelined by the Internal Affairs investigation. Horatio with the help of the night shift lab and Calleigh’s ex-boyfriend have to find the evidence to clear Natalia.
When terror suspect Sonya Barak is targeted by her own people for assassination, she goes on the run, and Horatio sets out to capture her, both to protect her and bring her to justice.
A Marine recruiter is found dead on a civilian shooting range with various bullet holes in him. The team can fine no evidence of blood at the scene. The investigators uncover that the victim was dead before he was shot and that his body was pulled onto the range. As the case advances, Horatio determines the murder may be tied to the death of a marine in Iraq who was killed in combat. Natalia is shocked to learn that Nick asked Valera out and that she accepted.
After a young woman is found dead shortly after she was auctioned off for charity, the team finds that the woman was trying to uncover the true nature of the event’s host. As the team delves deeper into the investigation they soon discover a larger plot that could put Miami in danger.
A murder and kidnapping becomes personal when DNA from a crime scene reveals that Natalia’s sister Anya is one of the kidnapped women they are looking for. The team finds a safe full of photos of missing women and they must find the photographer who was using his camera to lure the unsuspecting women.
After an accident where the driver was decapitated during a dangerous stunt, the evidence leads the CSI\’s to believe it was more than an accident. While gathering the evidence, the CSI\’s find they must go into the world of sideshows.
When strange accidents occur in the lab, the CSI team is spooked during a death investigation involving voodoo. As Halloween is near everyone starts to think that the lab is cursed.
The body of a local politician is found in an empty house. The entire neighborhood was upset that he was backing the use of eminent domain, allowing the government to force them out of their homes.
