http://www.dvdesonly.com/mi5-season-15-23-dvd-box-set-p-582.html
Description:
The BBC network strikes again with this series. MI-5 concerns a group of undercover UK security agents who are not only forced to lie to the dangerous groups that they infiltrate, but they must lie to their families as well. Incorporating cutting edge technology, this taut thriller is television at its most inventive.

DVD Details:

Format: All Region Code, Play on any DVD players
Number of Discs : 23 DVD
Brand New sealed in factory box
Language : English
Menu: English
Subtitles : English/French/Chinese/Korean (on/off)
Oversea release. Some foreign characters on covers