Stories Audio Drama Counter-Measures Counter-Measures Episode: 1 2 3 4 The Keep 1 image Overview Characters How to Listen Reviews Statistics Quotes Overview Released Friday, July 10, 2015 Written by Ken Bentley Directed by Ken Bentley Runtime 51 minutes Time Travel Present Location (Potential Spoilers!) Earth Synopsis For many years Sir Toby has used the Keep — the most secure and secret prison in England — to hide away incredibly dangerous threats to the country. But now two prisoners are attempting to escape — and they're not the only ones. Listen Listened Favourite Favourited Add Review Edit Review Log a repeat Skip Skipped Unowned Owned Owned Save to my list Saved Edit date completed Custom Date Release Date Archive (no date) Save Characters Ian Gilmore Simon Williams Rachel Jensen Pamela Salem Allison Williams Karen Gledhill Toby Kinsella Hugh Ross Templeton Show All Characters (5) How to listen to The Keep: Big Finish Audio Counter-Measures Series 4 Reviews Add Review Edit Review Submit a Review Statistics AVG. Rating25 members 3.9 / 5 Member Statistics Listened 23 Favourited 1 Reviewed 0 Saved 0 Skipped 0 Owned 3 Quotes Add Quote Submit a Quote