Peter and Tom learn about the skills required to be a medieval stonemason. They use these skills to build a spiral staircase.

Ruth, Tom and Peter learn about the art of medieval combat and how to build a castle's defensive structures.

Ruth, Peter and Tom learn about medieval interior design. Tom and Peter work on the inside walls of a guard tower by rendering and limewashing it.

Ruth, Peter and Tom learn about the construction of a castle and the coordination required for it. Blacksmiths, carpenters and masons must work together to make it happen.

Peter goes to Vezeley Abbey, which was an influence of the stone architecture of the period. The team assist in the construction of a limestone window of the chapel.