Episodes
| Episode | First Broadcast | Repeated | Comments |
|---|---|---|---|
| 01 | 20101009 | 20110507 (BBC7) 20120825 (BBC7) | Lionheart and Dunning investigate a mysterious outbreak of the Black Death in 1930s London |
| 02 | 20101016 | 20110514 (BBC7) 20120901 (BBC7) | MI-13's Lionheart and Dunning search for Sir Basil in the Scottish Highlands. |
| 03 | 20101023 | 20110521 (BBC7) 20120908 (BBC7) | MI-13's Lionheart and Dunning head for Egypt to uncover the secret of the lost tombs. |
| 04 | 20101030 | 20110528 (BBC7) 20120915 (BBC7) | With Dunning entombed alive and Lionheart en route to Germany, can the duo save the world? |