Jesse may lose his job as a secret from his past may make a killer return to the streets.

The case proving whether a man on death-row is positively innocent or not is taken up by Eric Delko upon his return to work.

Natalia’s injury puts her in trouble as well as Ryan, while a mysterious investigation where a man is cut in half puzzles the CSI.

The CSI are called in to investigate the evils of the pop star world regarding the incident of a pop starlet catching fire during her concert.

Delko is brought in as an expert defense witness as he must go up against his old team members.

The apparent murder of a census worker is investigated by the team who encounter abundant surprises.

The CSIs investigate a case of murder using jellyfish as the murder weapon, and as they piece together the puzzle and get closer to the truth, someone from Jesse’s past makes a return..

A fatal car accident claims the lives of two people. Unfortunately, as the CSIs delve into their investigation, they discover what covered the accident, and there is cause for concern for the Ballard family.

Horatio makes a call to Dr. Raymond Langston as he says he has found a severed leg somewhere in the Everglades, and it turns out that it belonged to a girl that has been missing …

The groom didn’t show up for his wedding. A case of cold feet? The CSIs think otherwise it’s a case of murder.

They have to recreate the bachelor party in order to In order to find …

The team investigates several seemingly random deaths, but when they realize that they are all part of an unexpected E.

Coli outbreak, they have to seek help; Alexx makes a return to the team as they …