Archaeologist Julian Richards returns to some of his most important digs to discover how science, conservation and new finds have changed our understanding of entire eras of ancient history.　　Pagans of Roman Britain　　1/4 Julian Richards goes back to the excavation of two burials from Roman Britain.　　Families of the Stone Age　　2/4 Archaeologist Julian Richards returns to the excavation of two burials from the Stone Age.　　Sacred Women of the Iron Age　　3/4 Julian Richards returns to the excavation of two very different Iron Age women.　　The First Anglo-Saxons　　4/4 Julian Richards returns to the excavation of two early Anglo-Saxon cemeteries.他的电球攻击(jī )并不(bú )是失(shī )效了(📇)，电球的能(néng )量需要触碰到生物，才会发生爆炸。