Season 18
Episodes
1 Reservoir Rituals - Tottiford Reservoir, Devon Feb 6, 2011 
2 Saxon Death, Saxon Gold - West Langton, Leicestershire Feb 13, 2011 
3 Romans on the Range - High Ham, Somerset Feb 20, 2011 
4 Hitler's Island Fortress - Les Gellettes, Jersey Feb 27, 2011 
5 Furnace in the Forest - Derwentcote, County Durham Mar 6, 2011 
6 Under the Gravestones - Castor, Cambridgeshire Mar 13, 2011 
7 House of the White Queen - Groby, Leicestershire Mar 20, 2011 
8 Cannons and Castles - Mont Orgueil, Jersey Mar 27, 2011 
9 Mystery of the Manor Moat - Llancaiach Fawr, South Wales Apr 3, 2011 
10 Buck Mill, Somerset - Search for the Domesday Mill Apr 10, 2011