Doctor Who episode 712: The End of the World (2/4/2005)
‘I’m the last of the Time Lords.’ Essentially Part Two of Rose, this focuses more on the new Doctor, including his first scenes without Rose as he instead partners with Jabe to investigate sabotage on Platform One. This means Rose spends a lot of the episode fulfilling the more typical companion role of getting menaced by the monsters and locked up in mortal peril, but even this feels like part of her character’s story: initial culture shock and uncertainty about what she’s got herself into. If this were a George Lucas production, Rose was all about her ordinary world, the call to adventure, meeting the mentor and crossing the threshold, this is her facing tests, allies and enemies.