A solid episode with all the entertainment and action that Rose offered two years ago. By necessity, a vehicle for introducing Martha to the Doctor and vice versa – Smith and Jones had a hungry alien criminal keen to remain hidden, Sontaran-esque alien police officers and a dose of Martha’s family, which I hope they won’t overdue. Remember what Micky was like in the first episode – ARGH! He thankfully developed over time… but I could do without that sort of experience again. And we have the appearance (or mention, as least) of Saxon, both in word and poster form. Where will we be going next with that little thread?