Columns: No. | Title | Directed by | Written by | Original air date | Production code | U.S. viewers (million)
1 | " Pilot " | Danny Cannon | Craig Silverstein | September9,2010 | 276051 | 3.57 | 2 | "2.0" | Danny Cannon | David Levinson & Craig Silverstein | September16,2010 | 3X6252 | 3.19 | 3 | "Kill Jill" | David Solomon | Amanda Segel | September23,2010 | 3X6253 | 3.15 | 4 | "Rough Trade" | Nick Copus | Carlos Coto | September30,2010 | 3X6254 | 2.68 | 5 | "The Guardian" | David Solomon | Albert Kim | October7,2010 | 3X6255 | 2.90 | 6 | "Resistance" | Guy Ferland | Kalinda Vazquez | October21,2010 | 3X6256 | 2.81 | 7 | "The Recruit" | Eagle Egilsson | Amanda Segel | October28,2010 | 3X6257 | 2.48 | 8 | "Phoenix" | David M. Barrett | Jim Barnes | November4,2010 | 3X6258 | 2.41 | 9 | "One Way" | Ken Fink | Albert Kim | November11,2010 | 3X6259 | 2.33 | 10 | "Dark Matter" | Danny Cannon | Carlos Coto | December2,2010 | 3X6260 | 2.30 | 11 | "All the Way" | Terrence O'Hara | Craig Silverstein | December9,2010 | 3X6261 | 2.29 | 12 | "Free" | Jonathan Glassner | Kalinda Vazquez | January27,2011 | 3X6262 | 2.62 | 13 | "Coup de Grace" | Nathan Hope | Albert Kim | February3,2011 | 3X6263 | 2.40 | 14 | "The Next Seduction" | David Solomon | Carlos Coto | February10,2011 | 3X6264 | 1.89 | 15 | "Alexandra" | Ken Fink | Andrew Colville | February17,2011 | 3X6265 | 2.10 | 16 | "Echoes" | Nick Copus | Kristen Reidel | February24,2011 | 3X6266 | 2.14 | 17 | "Covenants" | Eagle Egilsson | Jim Barnes | April7,2011 | 3X6267 | 1.82 | 18 | "Into the Dark" | Jeffrey Hunt | Albert Kim | April14,2011 | 3X6268 | 2.21 | 19 | "Girl's Best Friend" | Robert Lieberman | Carlos Coto | April21,2011 | 3X6269 | 2.01 | 20 | "Glass Houses" | Ralph Hemecker | Kalinda Vazquez | April28,2011 | 3X6270 | 1.72 | 21 | "Betrayals" | Eagle Egilsson | Andrew Colville | May5,2011 | 3X6271 | 2.00