| Title | Season Episode | Airdate | Stardate | Year | Rating | |
| Storm Front, Part 1 | 4 x 01 | 77 | 8 Oct 2004 | 1944 | 2154 |  |
| Borderland | 4 x 04 | 80 | 29 Oct 2004 | 17 May 2154 | 2154 | |
| The Augments | 4 x 06 | 82 | 12 Nov 2004 | 27 May 2154 | 2154 | |
| Kir'Shara | 4 x 09 | 85 | 3 Dec 2004 | Unknown | 2154 | |
| Observer Effect | 4 x 11 | 87 | 21 Jan 2005 | Unknown | 2154 | |
| The Aenar | 4 x 14 | 90 | 11 Feb 2005 | Unknown | 2154 | |
| Divergence | 4 x 16 | 92 | 25 Feb 2005 | Unknown | 2154 | |
| Terra Prime | 4 x 21 | 97 | 13 May 2005 | Unknown | 2155 | |
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