Information on Torchwood's sixth episode has been released by the BBC Press Office, and reads: "Captain Jack calls in Martha Jones to investigate mysterious deaths. When the trail leads to a sinister medical-testing centre, Martha must go undercover. But has Torchwood underestimated how far the testing centre will go to find medical breakthroughs? And how safe are the members of Torchwood? "
Meanwhile the Radio Times reports that viewers with digital television will get to see Martha's debut episode, "Reset", a week earlier than expected - on Torchwood's old home, BBC Three. According to the listing magazine's website following the broadcast of "Adam" on the 13th February, the next episode goes out on digital. Confirmation on this when we get it.
You can catch a glimpse of Martha Jones at local cinemas now, as the BBC preview the fourth season of Doctor Who.
Finally, episode three "To the Last Man" had a 13% share of the available television audience, with 3.2 million people watching.