E1 - Countermeasures

Aired: September 25, 2011

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.

E2 - Stiff

Aired: October 02, 2011

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

E3 - Blown Away

Aired: October 09, 2011

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

E4 - Look Who's Taunting

Aired: October 16, 2011

Horatio and his team are hunting a sadistic psychopath who tortures women - and one of them may still be alive.

E5 - Killer Regrets

Aired: October 23, 2011

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

E6 - By the Book

Aired: October 30, 2011

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

E7 - Sinner Takes All

Aired: November 06, 2011

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

E8 - Dead Ringer

Aired: November 13, 2011

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

E9 - A Few Dead Men

Aired: November 20, 2011

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

E10 - Long Gone

Aired: December 04, 2011

Horatio is determined to find a family that completely disappeared.

E11 - Crowned

Aired: December 11, 2011

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

E12 - Friendly Fire

Aired: January 08, 2012

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

E13 - Terminal Velocity

Aired: January 29, 2012

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

E14 - Last Straw

Aired: February 19, 2012

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

E15 - No Good Deed

Aired: March 04, 2012

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

E16 - Rest in Pieces

Aired: March 11, 2012

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

E17 - At Risk

Aired: March 18, 2012

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

E18 - Law & Disorder

Aired: March 25, 2012

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

E19 - Habeas Corpse

Aired: April 08, 2012

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.