I thought this was a particularly good New Adventure, a partial (though independent) sequel to the much earlier Warhead, taking the Doctor, Ace and Benny to very near-future England and America to deal with a peculiar new drug and a truly horrible animal experimentation centre. I was hooked, and felt that Cartmel managed to control the plot and characters in a very grownup Who story. Looking through my records I can see some of the themes from this and Warhead cropping up in Cartmel’s later Who work, but not as well co-ordinated as they are here. Really very impressed.