Publisher's Synopsis
In search of the key to a sinister alien technology, the Doctor, Klein and Will set their sights on an illicit intergalactic arms fair run by an old acquaintance - the slippery Urodelian crook, Garundel. But what are their chances of pulling off a particularly audacious heist from under the noses of Garundel and his alien clients, the ever-belligerent Sontarans.