10 Best Doctor Who Time Travel Stories
1. Rosa
It's astonishing, and more than a little embarrassing that it took until 2018 for Doctor Who to properly explore what it would be like to travel in time when you're not white. We've had a glib aside in The Shakespeare Code and an odious racist in Thin Ice but it's not until Rosa that the show tackles race head-on.
Co-written by Chris Chibnall and Malorie Blackman, it's an all-too plausible tale of someone who, when handed new technology, uses it to be appallingly racist. It also does something that the show hasn't done since the 1960s - present a period in history which is incredibly dangerous to members of the TARDIS team.
There's unbelievable tension to the scenes where Ryan helpfully picks up a dropped glove and IS refused service in the local diner. He's even threatened with a lynching in one of the episode's most shocking moments.
We've rarely seen as hostile an environment in the history of Doctor Who and it provides valuable insight into how far society has come and how far it still has to go with regards to racial equality.