Season 31

1. Witness

2008-09-17

A family slaughtered in their home, with only one witness left behind.

2. The Con Artist Bride

2008-09-24

Men allegedly scammed by so-called "Military Mistress" speak out.

3. Portrait of a President

2008-10-03

4. Episode 4

2008-10-10

5. John Stossel's Politically Incorrect Guide to Politics

2008-10-17

6. Episode 6

2008-10-24

7. Episode 7

2008-10-31

8. Episode 8

2008-11-07

9. Episode 9

2008-11-14

10. Episode 10

2008-11-21

11. Episode 11

2008-11-28

12. Episode 12

2008-12-05

13. Episode 13

2008-12-12

14. Drama High: The Making of a High School Musical

2008-12-15

15. Episode 15

2008-12-19

16. Episode 16

2008-12-26

17. Episode 17

2009-01-02

18. Vanished: Missing in Milwaukee

2009-01-07

19. Episode 19

2009-01-09

20. Episode 20

2009-01-16

21. Live To Tell: Who Lives? Who Dies?

2009-01-23

22. Episode 22

2009-01-30

23. Episode 23

2009-01-30

24. Episode 24

2009-02-06

25. A Hidden America: Children of the Mountains

2009-02-13

26. Episode 26

2009-02-20

27. Episode 27

2009-02-27

28. Episode 28

2009-03-06

29. Bailouts and Bull

2009-03-13

30. Episode 30

2009-03-20

31. Episode 31

2009-03-27

32. Episode 32

2009-04-03

33. If I Only Has A Gun

2009-04-10

34. Inside the World of Somali Pirates

2009-04-17

35. Black Widow

2009-04-24

36. Shocking Crime Shatters Family-Son Responsible for Masterminding Plot to Murder Family

2009-05-01

37. You Can't Even Talk About It

2009-05-08

38. Vanished: Gone in 90 Seconds

2009-05-15

39. Episode 39

2009-05-22

40. MISSING forever: What REALLY happened to Etan Patz?

2009-05-29

41. The Secret Nightlife of Teens

2009-06-05

42. Episode 42

2009-06-12

43. The New Normal

2009-06-19

44. Homeless Beauty Queen

2011-06-17

Blair Griffith's family was evicted after she was crowned Miss Colorado USA.

45. Cybercrime: We Find Them

2011-06-24

For a growing number of people, cyber acts have led to life-altering damage.

46. The Military Mistress

2011-07-09

A woman accused of conning nine military servicemen discusses her actions.

47. Finding 'The Help'

2011-07-15

Interviews with the cast of 'The Help' and an emotional reunion.

48. Episode 48

2009-07-17

49. Over a Barrel: The Truth About Oil

2009-07-24

50. Out Of Control Spenders Turn to Money Detox

2009-07-31

51. Medical Mysteries

2009-08-07

52. Blown Away/Twisted Terror

2009-08-14

53. Episode 53

2009-08-21

54. Episode 54

2009-08-28

55. Episode 55

2009-09-04