Columns: No. in series | No. in season | Title | Directed by | Written by | Original air date | U.S. viewers (millions)
122 | 1 | "Dangerous Son" | Sam Hill | Marc Dube & Krystal Houghton | September24,2007 | 15.08 | 123 | 2 | "Cyber-lebrity" | Matt Earl Beesley | Corey Evett & Matt Partney | October1,2007 | 14.72 | 124 | 3 | "Inside Out" | Gina Lamar | Sunil Nayar & John Haynes | October8,2007 | 14.45 | 125 | 4 | "Bang, Bang, Your Debt" | Karen Gaviola | Brian Davidson & Barry O'Brien | October15,2007 | 15.59 | 126 | 5 | "Deep Freeze" | Sam Hill | Elizabeth Devine | October22,2007 | 15.66 | 127 | 6 | "Sunblock" | Christine Moore | Corey Miller | October29,2007 | 14.85 | 128 | 7 | "Chain Reaction" | Scott Lautanen | Brian Davidson, Matt Partney & Corey Evett | November5,2007 | 14.07 | 129 | 8 | "Permanent Vacation" | Eagle Egilsson | Barry O'Brien & Krystal Houghton | November12,2007 | 15.46 | 130 | 9 | "Stand Your Ground" | Joe Chappelle | Marc Dube & John Haynes | November19,2007 | 15.83 | 131 | 10 | "CSI: My Nanny" | Jonathan Glassner | Corey Miller & Krystal Houghton | November26,2007 | 15.58 | 132 | 11 | "Guerillas in the Mist" | Carey Meyer | Barry O'Brien & Brian Davidson | December10,2007 | 14.11 | 133 | 12 | "Miami Confidential" | Sam Hill | Marc Dube | December17,2007 | 14.01 | 134 | 13 | "Raising Caine" | Gina Lamar | Sunil Nayar | January14,2008 | 14.80 | 135 | 14 | "You May Now Kill the Bride" | Eagle Egilsson | Barry O'Brien | March24,2008 | 16.06 | 136 | 15 | "Ambush" (Part 1) | Sam Hill | Corey Evett & Matt Partney | March31,2008 | 15.65 | 137 | 16 | "All In" (Part 2) | Joe Chappelle | Krystal Houghton | April1,2008 | 14.23 | 138 | 17 | "To Kill a Predator" | Matt Earl Beesley | Brian Davidson | April21,2008 | 14.38 | 139 | 18 | "Tunnel Vision" | Karen Gaviola | Tamara Jaron | April28,2008 | 13.88 | 140 | 19 | "Rock and a Hard Place" | Gina Lamar | Marc Dube | May5,2008 | 14.11 | 141 | 20 | "Down to the Wire" | Eagle Egilsson | Sunil Nayar | May12,2008 | 13.92