When Mum finds an inappropriate image on the family computer, an investigation begins. Gran is still staying, and Dad is horrified at the thought of having a heart-to-heart with her. Meanwhile, the ancient game of chess will never be quite the same again after Ben brings his own special talents to it.

Dad struggles against a rising tide of superstition, astrology and conspiracy theories that seem to be taking over the family, while Ben takes time off from re-enacting the crusades to show a couple of prospective buyers around the house.