(W) Trevor Baxendale It's been a busy week in Cardiff. The Hub's latest guest is a translucent, amber jelly carrying a lethal electrical charge. Record numbers of aliens have been coming through the Rift, and Torchwood could do without any more problems. Torchwood should be ready for anything. But with Jack the target of an invisible killer, Gwen trapped in a forgotten crypt and Ianto Jones falling desperately ill, could a world of suffering be the Undertaker's gift to planet Earth?