That will teach me not to rely on teasers and promo clips. I was sure Fire in the Sky would be a wonderful mashup of some of my other favourite TV shows: Star Trek, The X-Files, Doctor Who, plus a riff on the cult classic movie that gave this episode its title. And the main story is all that – although it’s not without its problems. Unfortunately, it shares its screen time with not one but two unrelated side stories that only serve to dilute the episode in a way that almost – almost! – made me glad that George Crabtree wasn’t around to witness it.