Columns: No. in series | No. in season | Title | Directed by | Written by | Original air date | U.S. viewers (millions)
230 | 1 | "Shock Waves" | Alec Smight | David Weddle & Bradley Thompson | September23,2010 | 14.69 | 231 | 2 | "Pool Shark" | Michael Nankin | Dustin Lee Abraham | September30,2010 | 13.41 | 232 | 3 | "Blood Moon" | Brad Tanenbaum | Treena Hancock & Melissa R. Byer | October7,2010 | 12.50 | 234 | 5 | "House of Hoarders" | Alec Smight | Christopher Barbour | October21,2010 | 14.96 | 235 | 6 | "Cold Blooded" | Louis Shaw Milito | Tom Mularz | October28,2010 | 14.27 | 236 | 7 | "Bump and Grind" | Michael Nankin | Don McGill | November4,2010 | 13.96 | 237 | 8 | "Fracked" | Martha Coolidge | David Weddle & Bradley Thompson | November11,2010 | 12.99 | 238 | 9 | "Wild Life" | Charles Haid | Treena Hancock & Melissa R. Byer | November18,2010 | 14.15 | 239 | 10 | "418/427" | Frank Waldeck | Michael Frost Beckner | December9,2010 | 13.17 | 240 | 11 | "Man Up" | Alec Smight | Michael F.X. Daley | January6,2011 | 14.22 | 241 | 12 | "A Kiss Before Frying" | Brad Tanenbaum | Evan Dunsky | January20,2011 | 14.34 | 243 | 14 | "All That Cremains" | Jeffrey Hunt | Dustin Lee Abraham | February10,2011 | 12.64 | 244 | 15 | "Targets of Obsession" | Alec Smight | David Weddle & Bradley Thompson | February17,2011 | 13.29 | 245 | 16 | "Turn On, Tune In, Drop Dead" | Paul McCrane | Tom Mularz | February24,2011 | 12.41 | 246 | 17 | "The List" | Louis Milito | Richard Catalani | March10,2011 | 13.39 | 247 | 18 | "Hitting for the Cycle" | Alec Smight | Daniel Steck & Richard Catalani | March31,2011 | 12.76 | 248 | 19 | "Unleashed" | Brad Tanenbaum | Ed Whitmore & Anthony E. Zuiker | April7,2011 | 13.06 | 249 | 20 | "Father of the Bride"(Part 1) | Frank Waldeck | Evan Dunsky | April28,2011 | 10.84 | 250 | 21 | "Cello and Goodbye"(Part 2) | Alec Smight | Christopher Barbour & Don McGill | May5,2011 | 10.67