Spanning three generations of three families, Wenlock is set in and about the town of Weipa North Queensland. The interaction between the Rochester, Palmer, and the Moses families is formed by tradition and occasioned by greed. The Palmer's matriarch Harold Palmer unknowingly fathered an illegitimate son following a liaison while on leave in London during WWI. Returning to Australia won the rights to the property he called 'Marylebone Station' in a ballot after WWI. This is the story of the struggles for ownership of that property. Mark Palmer is a grandson of Harold and is dissatisfied with his father's decision to follow his grandfather's lead concerning the legacy of Marylebone. Blake Moses, a decorated Special Air Services officer, is wounded in Afghanistan and returns to Northern Queensland on leave to recuperate. There he links up with a friend from the Australian Defence Force Academy, Tammy Wilson. She is now a police constable. Using his unique skill set, he assists Tammy and the Queensland Police with their murder investigation of the owners of the Marylebone while he is on secondment to the Australian Federal Police. Rally Rochester is the grandson of Harold who chooses to visit 'Marylebone Station' to meet his Australian family members, whose existence he became aware of because of a letter from the grave written by his mother. Through an unexpected chain of events, he inherits ownership of 'Marylebone Station' following the murder of the owners of the station his relatives, Colin and Ailsa.