20/20 Season 31 Episode release dates & where to watch

1. Witness

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

2. The Con Artist Bride

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

3. Portrait of a President

4. Episode 4

5. John Stossel's Politically Incorrect Guide to Politics

6. Episode 6

7. Episode 7

8. Episode 8

9. Episode 9

10. Episode 10

11. Episode 11

12. Episode 12

13. Episode 13

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

15. Episode 15

16. Episode 16

17. Episode 17

18. Vanished: Missing in Milwaukee

19. Episode 19

20. Episode 20

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

22. Episode 22

23. Episode 23

24. Episode 24

25. A Hidden America: Children of the Mountains

26. Episode 26

27. Episode 27

28. Episode 28

29. Bailouts and Bull

30. Episode 30

31. Episode 31

32. Episode 32

33. If I Only Has A Gun

34. Inside the World of Somali Pirates

35. Black Widow

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

37. You Can't Even Talk About It

38. Vanished: Gone in 90 Seconds

39. Episode 39

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

41. The Secret Nightlife of Teens

42. Episode 42

43. The New Normal

44. Homeless Beauty Queen

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

45. Cybercrime: We Find Them

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

46. The Military Mistress

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

47. Finding 'The Help'

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

48. Episode 48

49. Over a Barrel: The Truth About Oil

50. Out Of Control Spenders Turn to Money Detox

51. Medical Mysteries

52. Blown Away/Twisted Terror

53. Episode 53

54. Episode 54

55. Episode 55 Finale