The Time Team Specials are aired in between regular episodes, but are omitted from this list.
Regular contributors on Time Team include: Tony Robinson (presenter); archaeologists Mick Aston, Phil Harding, Carenza Lewis, Beric Morley; Guy de la Bédoyère (historian); Victor Ambrus (illustrator); Stewart Ainsworth (landscape investigator); John Gater, Chris Gaffney (Geophysics); Henry Chapman (surveyor); Mark Corney (Roman expert).
The people of Plympton believe there is enough evidence to plot the layout of the medieval town which surrounds the ruins of their castle, and which was formerly owned by the immensely powerful and wealthy de Redvers family.
Back gardens and interiors will provide the clues, rather than frontages which have probably been altered many times in the last 800 years.
They are joined by Plymouth city archaeologist Keith Ray and dendrochronologist Robert Howard.