We join Torchwood, Jack, Gwen and Ianto going to Switzerland when Dr. Martha Jones calls for help. Set at the time when CERN activated the large Hadron Collider it's an action tale of alien trying to lure humans into being food and an exploration of the aftermath of the lost of team members. Some nice touches, like Ianto's "My bike got a bell" and Gwen being all action hero. Jack's greeting for Martha is getting old but hey, it's Jack.Overall an okay radio play.