Columns: No. by series | No. by season | Title | Directed by | Written by | Original air date | Production number | U.S. viewers (in millions)
59 | 1 | "Rise" | Rob Bowman | Andrew W. Marlowe | September19,2011 | 401 | 13.28 | 60 | 2 | "Heroes & Villains" | Jeff Bleckner | David Amann | September26,2011 | 402 | 11.67 | 61 | 3 | "Head Case" | Holly Dale | David Grae | October3,2011 | 403 | 11.18 | 62 | 4 | "Kick the Ballistics" | Rob Bowman | Moira Kirland | October10,2011 | 404 | 10.23 | 63 | 5 | "Eye of the Beholder" | John Terlesky | Shalisha Francis | October17,2011 | 405 | 11.23 | 64 | 6 | "Demons" | Bill Roe | Rob Hanning | October24,2011 | 406 | 10.81 | 65 | 7 | "Cops & Robbers" | Bryan Spicer | Terence Paul Winter | October31,2011 | 407 | 12.58 | 66 | 8 | "Heartbreak Hotel" | Bill Roe | Elizabeth Davis | November7,2011 | 408 | 11.07 | 67 | 9 | "Kill Shot" | David M. Barrett | Alexi Hawley | November21,2011 | 409 | 10.85 | 68 | 10 | "Cuffed" | John Terlesky | Terri Miller & Andrew W. Marlowe | December5,2011 | 410 | 8.12 | 69 | 11 | "Till Death Do Us Part" | Jeff Bleckner | David Grae | January9,2012 | 411 | 9.76 | 70 | 12 | "Dial M for Mayor" | Kate Woods | Christine Boylan | January16,2012 | 412 | 9.41 | 71 | 13 | "An Embarrassment of Bitches" | Tom Wright | Rob Hanning | January23,2012 | 413 | 10.05 | 72 | 14 | "The Blue Butterfly" | Chuck Bowman | Terence Paul Winter | February6,2012 | 414 | 8.70 | 73 | 15 | "Pandora" | Bryan Spicer | David Amann | February13,2012 | 415 | 8.86 | 74 | 16 | "Linchpin" | Rob Bowman | Andrew W. Marlowe | February20,2012 | 416 | 9.73 | 75 | 17 | "Once Upon a Crime" | Jeff Bleckner | Kate Sargeant | February27,2012 | 417 | 9.10 | 76 | 18 | "A Dance with Death" | Kevin Hooks | Moira Kirland | March19,2012 | 418 | 11.52 | 77 | 19 | "47 Seconds" | Paul Holahan | Shalisha Francis | March26,2012 | 419 | 11.87 | 78 | 20 | "The Limey" | Bill Roe | Elizabeth Davis | April2,2012 | 420 | 11.69 | 79 | 21 | "Headhunters" | John Terlesky | Alexi Hawley | April16,2012 | 421 | 11.23 | 80 | 22 | "Undead Again" | Bill Roe | Christine Boylan | April30,2012 | 422 | 11.08