Columns: No. in series | No. in season | Title | Directed by | Written by | Original air date | U.S. viewers (millions)
103 | 1 | " Good Mourning " | Ed Ornelas | Krista Vernoff | September24,2009 | 17.03 | 104 | 2 | " Goodbye " | Bill D'Elia | Krista Vernoff | September24,2009 | 17.03 | 105 | 3 | " I Always Feel Like Somebody's Watchin' Me " | Michael Pressman | Tony Phelan & Joan Rater | October1,2009 | 15.69 | 106 | 4 | " Tainted Obligation " | Tom Verica | Jenna Bans | October8,2009 | 14.13 | 107 | 5 | " Invasion " | Tony Phelan | Mark Wilding | October15,2009 | 13.79 | 108 | 6 | " I Saw What I Saw " | Allison Liddi-Brown | William Harper | October22,2009 | 15.40 | 109 | 7 | " Give Peace a Chance " | Chandra Wilson | Peter Nowalk | October29,2009 | 13.74 | 110 | 8 | " Invest in Love " | Jessica Yu | Stacy McKee | November5,2009 | 13.95 | 111 | 9 | " New History " | Rob Corn | Allan Heinberg | November12,2009 | 14.87 | 112 | 10 | " Holidaze " | Robert Berlinger | Krista Vernoff | November19,2009 | 14.07 | 113 | 11 | " Blink " | Randy Zisk | Debora Cahn | January14,2010 | 12.78 | 114 | 12 | " I Like You So Much Better When You're Naked " | Donna Deitch | Tony Phelan & Joan Rater | January21,2010 | 12.70 | 115 | 13 | " State of Love and Trust " | Jeannot Szwarc | Stacy McKee | February4,2010 | 12.55 | 116 | 14 | " Valentine's Day Massacre " | Stephen Cragg | William Harper | February11,2010 | 12.74 | 117 | 15 | " The Time Warp " | Rob Corn | Zoanne Clack | February18,2010 | 10.27 | 118 | 16 | " Perfect Little Accident " | Bill D'Elia | Peter Nowalk | March4,2010 | 11.83 | 119 | 17 | " Push " | Chandra Wilson | Debora Cahn | March11,2010 | 10.94 | 120 | 18 | " Suicide is Painless " | Jeannot Szwarc | Tony Phelan & Joan Rater | March25,2010 | 11.57 | 121 | 19 | " Sympathy for the Parents " | Debbie Allen | Allan Heinberg | April1,2010 | 9.87 | 122 | 20 | " Hook, Line and Sinner " | Tony Phelan | Meg Marinis | April29,2010 | 10.47 | 123 | 21 | " How Insensitive " | Tom Verica | William Harper | May6,2010 | 11.03 | 124 | 22 | " Shiny Happy People " | Ed Ornelas | Zoanne Clack & Peter Nowalk | May13,2010 | 11.05 | 125 | 23 | " Sanctuary " | Stephen Cragg | Shonda Rhimes | May20,2010 | 13.93