The south Wales valleys are the setting of the final outing for best pals Margie Cooper and Tim Medhurst. They head towards Cardiff in their electric-powered, former fire engine. Hitting the shops, our pair summon the support of the spirits with a pottery obelisk and some spooky psychic sketches. We learn a secret 19th-century language as one antique fan finds an antique, um, fan. In Brynmawr, Margie finds out about the life and attire of legendary wrestler Adrian Street, while Tim steps into the ring and learns not to grapple with the Welsh the hard way. At their final auction 'slam-down', will it be Tim or Margie who ends up on the mat?