Columns: No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code | U.S. viewers (millions)
58 | 1 | " Scylla " | Kevin Hooks | Matt Olmstead | September1,2008 | 4AKJ01 | 6.53 | 59 | 2 | " Breaking & Entering " | Bobby Roth | Zack Estrin | September1,2008 | 4AKJ02 | 6.53 | 60 | 3 | " Shut Down " | Milan Cheylov | Nick Santora | September8,2008 | 4AKJ03 | 6.36 | 61 | 4 | " Eagles & Angels " | Michael Switzer | Karyn Usher | September15,2008 | 4AKJ04 | 5.79 | 62 | 5 | " Safe & Sound " | Karen Gaviola | Seth Hoffman | September22,2008 | 4AKJ05 | 5.84 | 63 | 6 | " Blow Out " | Bryan Spicer | Kalinda Vazquez | September29,2008 | 4AKJ06 | 5.28 | 64 | 7 | " Five the Hard Way " | Garry A. Brown | Christian Trokey | October6,2008 | 4AKJ07 | 5.37 | 65 | 8 | " The Price " | Bobby Roth | Graham Roland | October20,2008 | 4AKJ08 | 5.45 | 66 | 9 | " Greatness Achieved " | Jesse Bochco | Nick Santora | November3,2008 | 4AKJ09 | 5.23 | 67 | 10 | " The Legend " | Dwight H. Little | Karyn Usher | November10,2008 | 4AKJ10 | 5.38 | 68 | 11 | " Quiet Riot " | Kevin Hooks | Seth Hoffman | November17,2008 | 4AKJ11 | 5.52 | 69 | 12 | " Selfless " | Michael Switzer | Kalinda Vazquez | November24,2008 | 4AKJ12 | 5.25 | 70 | 13 | "Deal or No Deal" | Bobby Roth | Christian Trokey | December1,2008 | 4AKJ13 | 5.84 | 71 | 14 | "Just Business" | Mark Helfrich | Graham Roland | December8,2008 | 4AKJ14 | 5.40 | 72 | 15 | "Going Under" | Karen Gaviola | Zack Estrin | December15,2008 | 4AKJ15 | 5.37 | 73 | 16 | "The Sunshine State" | Kevin Hooks | Matt Olmstead & Nicholas Wootton | December22,2008 | 4AKJ16 | 4.98 | 74 | 17 | "The Mother Lode" | Jonathan Glassner | Seth Hoffman | April17,2009 | 4AKJ17 | 3.34 | 75 | 18 | "VS." | Dwight H. Little | Christian Trokey & Kalinda Vazquez | April24,2009 | 4AKJ18 | 3.06 | 76 | 19 | "S.O.B." | Garry A. Brown | Karyn Usher | May1,2009 | 4AKJ19 | 3.20 | 77 | 20 | "Cowboys & Indians" | Milan Cheylov | Nick Santora | May8,2009 | 4AKJ20 | 2.99 | 78 | 21 | "Rate of Exchange" | Bobby Roth | Zack Estrin | May15,2009 | 4AKJ21 | 3.32