Horatio and Natalia's lives hang in the balance, as Horatio stands between Natalia and certain death. Meanwhile, it's a race against time for the team to capture escaped killer Jack Toller before he kills again.

The discovery of a strange murder weapon leads the CSIs into the world of gigolos.

A tornado touches down on a murder scene, damaging the evidence and putting Ryan and Walter in grave danger.

Mexico's deadliest assassin is a target in Miami. Horatio's only hope is his worst enemy.

In a deserted mansion, the CSIs find a body hanging that appears to have been killed by a vampire.

A high stakes poker game is disrupted by a masked assassin, leaving one player dead and the CSIs baffled.

When Horatio finds another corpse with missing eyes, everything points to his nemesis, “The Taunter” – except he has an airtight alibi.

The CSIs investigate when three convicted murderers are released from prison and someone starts killing them one by one.

Horatio is determined to find a family that completely disappeared.

The CSIs expose the seedy underbelly of children’s beauty pageants when a contestant's mom is murdered.

An eccentric genius is assassinated with the most unique weapon the CSIs have ever seen.

When a skydiver is murdered, the CSIs discover that he has more than 100 children and all of them are suspects.

When the sisters of a Miami sorority are knocked off one by one, the CSIs try to end the murder spree.

When a neighborhood do-gooder is murdered, Horatio and the CSIs discover that he was planning to blow the whistle on something big.

When the Miami Taunter strikes again, Horatio meets with the matriarch of the suspected killer's family.

When a beloved tennis coach is nearly killed, Calleigh discovers a personal connection to the case.

A corruption scandal is uncovered by the CSI team which forces Horatio to face an old adversary. Malcolm McDowell returns as Darren Vogel.

Every member of CSI is a suspect when one of the team's enemies is murdered. When the investigation becomes deadly, Samantha Owens ends up having to be rescued.