Columns: No. | # | Title | Directed by | Written by | U.S. air date | Production code | U.S. viewers (million)
45 | 1 | " Exile" | Greg Beeman | Alfred Gough & Miles Millar | October1,2003 | 176201 | 6.80 | 46 | 2 | " Phoenix" | James Marshall | Kelly Souders & Brian Peterson | October8,2003 | 176202 | 6.70 | 47 | 3 | " Extinction" | Michael Katleman | Todd Slavkin & Darren Swimmer | October15,2003 | 176203 | 6.50 | 48 | 4 | " Slumber" | Daniel Attias | Drew Z. Greenberg | October22,2003 | 176204 | 6.90 | 49 | 5 | " Perry" | Jeannot Szwarc | Mark Verheiden | October29,2003 | 176205 | 6.70 | 50 | 6 | " Relic" | Marita Grabiak | Kelly Souders & Brian Peterson | November5,2003 | 176206 | 6.70 | 51 | 7 | " Magnetic" | David Jackson | Holly Harold | November12,2003 | 176207 | 6.90 | 52 | 8 | " Shattered" | Ken Biller | Ken Biller | November19,2003 | 176208 | 6.40 | 53 | 9 | " Asylum" | Greg Beeman | Todd Slavkin & Darren Swimmer | January14,2004 | 176209 | 5.60 | 54 | 10 | " Whisper" | Tom Wright | Ken Horton | January21,2004 | 176210 | 5.10 | 55 | 11 | " Delete" | Pat Williams | Kelly Souders & Brian Peterson | January28,2004 | 176211 | 5.50 | 56 | 12 | " Hereafter" | Greg Beeman & James Marshall | Mark Verheiden & Drew Greenberg | February4,2004 | 176212 | 5.30 | 57 | 13 | " Velocity" | Jeannot Szwarc | Todd Slavkin & Darren Swimmer | February11,2004 | 176213 | 5.00 | 58 | 14 | " Obsession" | James Marshall | Holly Harold | February18,2004 | 176214 | 5.33 | 59 | 15 | " Resurrection" | Terrence O'Hara | Todd Slavkin & Darren Swimmer | February25,2004 | 176215 | 4.97 | 60 | 16 | " Crisis" | Ken Biller | Kelly Souders & Brian Peterson | March3,2004 | 176216 | 5.26 | 61 | 17 | " Legacy" | Greg Beeman | Jeph Loeb | April14,2004 | 176217 | 4.48 | 62 | 18 | " Truth" | James Marshall | Drew Greenberg | April21,2004 | 176218 | 4.43 | 63 | 19 | " Memoria" | Miles Millar | Alfred Gough & Miles Millar | April28,2004 | 176219 | 4.32 | 64 | 20 | " Talisman" | John Schneider | Ken Biller | May5,2004 | 176220 | 4.72 | 65 | 21 | " Forsaken" | Terrence O'Hara | Kelly Souders & Brian Peterson | May12,2004 | 176221 | 4.54