The team doesn't have any difficulty finding suspects when a hated receptionist is murdered.

A killer may return to the streets because of a secret from Jesse's past and cost him his job.

Eric Delko returns to work on a case proving if a man on death-row is affirmatively innocent or not.

Natalia's injury jeopardizes her and Ryan, meanwhile, a strange investigation where a man is chopped in half baffles the CSI's.

A pop starlet bursts into flames during her concert thrusting the CSI's to investigate the dark side of the pop star world.

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

Horatio and the team investigate a dead census worker, and the investigation sends the team into a high octane car chase and an explosion that threatens the lives of two CSIs, Ryan and Natalia.

A mysterious woman from Jesse's past returns during an investigation into a murder using jellyfish.

Horatio and the team must figure out who or what caused a terrible car crash, and the investigation reveals both driver's darkest secrets.

Horatio calls Dr. Raymond Langston and says a severed leg was found in the Everglades and it's from a girl that went missing in Las Vegas a week ago.

In order to find the missing groom and solve a murder, the CSI's must recreate a bachelor party.

When several seemingly unrelated deaths turn out to be part of a sudden outbreak of E. Coli, Alexx returns to help the team as they race to find the source of it to stop the death toll from rising.

When the most hated man in Miami is murdered, the CSIs go on the hunt for his killer and his hidden treasure.

Calleigh's testimony may harm Delko's future, meanwhile three volleyball players die on the court and the CSI team investigates.

Horatio takes point as the negotiator when an armed gunman storms CSI headquarters and takes hostages.

Delko is found comatose, and we are taken back to the year 1997 to when the team first formed.