Season 10

01 Countermeasures Episode 125th September 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. 02 Stiff Episode 22nd October 2011 The discovery of a strange murder weapon leads the CSIs into the world of gigolos. 03 Blown Away Episode 39th October 2011 A tornado touches down on a murder scene, damaging the evidence and putting Ryan and Walter in grave danger. 04 Look Who's Taunting Episode 416th October 2011 Horatio and his team are hunting a sadistic psychopath who tortures women - and one of them may still be alive. 05 Killer Regrets Episode 523rd October 2011 Mexico's deadliest assassin is a target in Miami. Horatio's only hope is his worst enemy. 06 By the Book Episode 630th October 2011 In a deserted mansion, the CSIs find a body hanging that appears to have been killed by a vampire. 07 Sinner Takes All Episode 76th November 2011 A high stakes poker game is disrupted by a masked assassin, leaving one player dead and the CSIs baffled. 08 Dead Ringer Episode 813th November 2011 When Horatio finds another corpse with missing eyes, everything points to his nemesis, “The Taunter” – except he has an airtight alibi. 09 A Few Dead Men Episode 920th November 2011 The CSIs investigate when three convicted murderers are released from prison and someone starts killing them one by one. 10 Long Gone Episode 104th December 2011 Horatio is determined to find a family that completely disappeared. 11 Crowned Episode 1111th December 2011 The CSIs expose the seedy underbelly of children’s beauty pageants when a contestant's mom is murdered. 12 Friendly Fire Episode 128th January 2012 An eccentric genius is assassinated with the most unique weapon the CSIs have ever seen. 13 Terminal Velocity Episode 1329th January 2012 When a skydiver is murdered, the CSIs discover that he has more than 100 children and all of them are suspects. 14 Last Straw Episode 1419th February 2012 When the sisters of a Miami sorority are knocked off one by one, the CSIs try to end the murder spree. 15 No Good Deed Episode 154th March 2012 When a neighborhood do-gooder is murdered, Horatio and the CSIs discover that he was planning to blow the whistle on something big. 16 Rest in Pieces Episode 1611th March 2012 When the Miami Taunter strikes again, Horatio meets with the matriarch of the suspected killer's family. 17 At Risk Episode 1718th March 2012 When a beloved tennis coach is nearly killed, Calleigh discovers a personal connection to the case. 18 Law & Disorder Episode 1825th March 2012 A corruption scandal is uncovered by the CSI team which forces Horatio to face an old adversary. Malcolm McDowell returns as Darren Vogel. 19 Habeas Corpse Episode 198th April 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.