Invasion: 1x18
1 - 1Episode 1 Sep. 19, 2005
1 - 2Episode 2 Sep. 26, 2005
1 - 3Episode 3 Oct. 05, 2005
1 - 4Episode 4 Oct. 12, 2005
1 - 5Episode 5 Oct. 19, 2005
1 - 6Episode 6 Oct. 26, 2005
1 - 7Episode 7 Nov. 09, 2005
1 - 8Episode 8 Nov. 16, 2005
1 - 9Episode 9 Nov. 23, 2005
1 - 10Episode 10 Nov. 30, 2005
1 - 11Episode 11 Jan. 11, 2006
1 - 12Episode 12 Jan. 18, 2006
1 - 13Episode 13 Jan. 25, 2006
1 - 14Episode 14 Feb. 08, 2006
1 - 15Episode 15 Feb. 15, 2006
1 - 16Episode 16 Mar. 08, 2006
1 - 17Episode 17 Mar. 15, 2006
1 - 18Episode 18 Apr. 18, 2006
1 - 19Episode 19 Apr. 25, 2006
1 - 20Episode 20 May. 02, 2006
1 - 21Episode 21 May. 09, 2006
1 - 22Episode 22 May. 16, 2006