In the first episode they find that the True Cross that crucified Jesus is in Britain and at the end they just kind of let it get burned up in a fire when they could have easily removed it from the fire.
The Independent's Thomas Sutcliffe found it laughable and full of absurdities, while also observing that "Professor Magwilde's approach to archaeology is unconventional. She likes to squat at the edge of the trench and mutter urgently, 'Come on! Give up your secrets!'"