Columns: No. | # | Title | Directed by | Written by | U.S. air date | Production code | U.S. viewers (million)
89 | 1 | "Arrival" | James Marshall | Todd Slavkin & Darren Swimmer | September29,2005 | 2T6401 | 5.90 | 90 | 2 | "Mortal" | Terrence O'Hara | Steven S. DeKnight | October6,2005 | 2T6402 | 5.84 | 91 | 3 | "Hidden" | Whitney Ransick | Kelly Souders & Brian Peterson | October13,2005 | 2T6403 | 5.92 | 92 | 4 | "Aqua" | Bradford May | Todd Slavkin & Darren Swimmer | October20,2005 | 2T6404 | 6.40 | 93 | 5 | "Thirst" | Paul Shapiro | Steven S. DeKnight | October27,2005 | 2T6405 | 5.78 | 94 | 6 | "Exposed" | Jeannot Szwarc | Kelly Souders & Brian Peterson | November3,2005 | 2T6406 | 5.41 | 95 | 7 | "Splinter" | James Marshall | Steven S. DeKnight | November10,2005 | 2T6407 | 5.51 | 96 | 8 | "Solitude" | Paul Shapiro | Todd Slavkin & Darren Swimmer | November17,2005 | 2T6408 | 5.97 | 97 | 9 | "Lexmas" | Rick Rosenthal | Holly Harold | December8,2005 | 2T6409 | 5.37 | 98 | 10 | "Fanatic" | Michael Rohl | Wandy Maricle | January12,2006 | 2T6410 | 5.45 | 99 | 11 | "Lockdown" | Peter Ellis | Steven S. DeKnight | January19,2006 | 2T6411 | 4.90 | 100 | 12 | " Reckoning " | Greg Beeman | Kelly Souders & Brian Peterson | January26,2006 | 2T6412 | 6.28 | 101 | 13 | "Vengeance" | Jeannot Szwarc | Al Septien & Turi Meyer | February2,2006 | 2T6413 | 5.37 | 102 | 14 | "Tomb" | Whitney Ransick | Steven S. DeKnight | February9,2006 | 2T6414 | 5.41 | 103 | 15 | "Cyborg" | Glen Winter | Caroline Dries | February16,2006 | 2T6415 | 6.24 | 104 | 16 | "Hypnotic" | Michael Rohl | Todd Slavkin & Darren Swimmer | March30,2006 | 2T6416 | 4.78 | 105 | 17 | "Void" | Jeannot Szwarc | Holly Harold | April6,2006 | 2T6417 | 4.24 | 106 | 18 | " Fragile" | Tom Welling | Todd Slavkin & Darren Swimmer | April13,2006 | 2T6418 | 3.94 | 107 | 19 | "Mercy" | James Marshall | Steven S. DeKnight | April20,2006 | 2T6419 | 4.41 | 108 | 20 | "Fade" | Terrence O'Hara | Turi Meyer & Al Septien | April27,2006 | 2T6420 | 4.34 | 109 | 21 | "Oracle" | Patrick Norris | Caroline Dries | May4,2006 | 2T6421 | 4.81