Series 21

1. Different Worlds (1)

2006-09-23

2. Different Worlds (2)

2006-09-24

3. Waste of Space

2006-09-30

4. Heads Together

2006-10-01

5. Sons and Lovers

2006-10-08

6. Angels and Demons

2006-10-15

7. What You See Is What You Get

2006-10-22

8. Born to Be Wild

2006-10-29

9. To Be a Parent

2006-11-11

10. It's Now or Never

2006-11-18

11. All Through the Night

2006-11-25

12. No Place Like...

2006-12-02

13. The Edge of Fear

2006-12-09

14. In Good Faith

2006-12-16

15. Killing Me Softly

2006-12-23

16. Silent Night

2006-12-24

17. The Sunny Side of the Street (1)

2006-12-30

18. The Sunny Side of the Street (2)

2006-12-31

19. Fish Out of Water

2007-01-06

20. Stormy Weather

2007-01-13

21. The Personal Touch

2007-01-20

22. Countdown

2007-01-27

23. The Silence of Friends

2007-02-03

24. No Return

2007-02-10

25. The Miracle on Harry's Last Shift

2007-02-17

26. The Killing Floor

2007-02-24

27. Combat Indicators (1)

2007-03-03

28. Combat Indicators (2)

2007-03-07

29. Sweet Charity

2007-03-10

A special episode to link in with the Red Nose Day charity appeal.

30. A World Elsewhere

2007-03-17

31. Stitch

2007-03-18

32. Life's Too Short

2007-03-24

33. Day One

2007-03-31

34. Lost in the Rough

2007-04-07

35. Lush

2007-04-14

36. Aliens

2007-04-28

37. Close Encounters

2007-05-05

38. A Long Way From Home

2007-05-19

39. The Apostate

2007-05-26

40. Communion

2007-06-02

41. Brass in Pocket

2007-06-09

42. Entropy

2007-06-16

43. It Never Rains...

2007-06-23

44. Lie to Me

2007-06-30

45. The Fires Within

2007-07-14

46. Walking the Line

2007-07-21

47. Seize the Day

2007-07-28

48. To Love You So

2007-08-04