Disappeared: 4x20
Mar. 12, 2012
4 - 1Episode 1 Oct. 24, 2011- 4 - 2Episode 2 Oct. 31, 2011
- 4 - 3Episode 3 Nov. 07, 2011
- 4 - 4Episode 4 Nov. 14, 2011
- 4 - 5Episode 5 Nov. 21, 2011
- 4 - 6Episode 6 Nov. 28, 2011
- 4 - 7Episode 7 Dec. 05, 2011
- 4 - 8Episode 8 Dec. 12, 2011
- 4 - 9Episode 9 Dec. 19, 2011
- 4 - 10Episode 10 Jan. 02, 2012
- 4 - 11Episode 11 Jan. 09, 2012
- 4 - 12Episode 12 Jan. 16, 2012
- 4 - 13Episode 13 Jan. 23, 2012
- 4 - 14Episode 14 Jan. 30, 2012
- 4 - 15Episode 15 Feb. 06, 2012
- 4 - 16Episode 16 Feb. 13, 2012
- 4 - 17Episode 17 Feb. 20, 2012
- 4 - 18Episode 18 Feb. 27, 2012
- 4 - 19Episode 19 Mar. 05, 2012
- 4 - 20Episode 20 Mar. 12, 2012
- 4 - 21Episode 21 Mar. 19, 2012
- 4 - 22Episode 22 Mar. 26, 2012
- 4 - 23Episode 23 Apr. 02, 2012
- 4 - 24Episode 24 Apr. 09, 2012
- 4 - 25Episode 25 Apr. 16, 2012
- 4 - 26Episode 26 Apr. 23, 2012
- 4 - 27Episode 27 Apr. 30, 2012