CLYDE: What do you google, Tardis?
SARAH JANE: It works. No, I can't be sure, but there's a woman called Tegan in Australia, fighting for Aboriginal rights. There's a Ben and Polly, in India, running an orphanage there. There was Harry. Oh, I loved Harry. He was a doctor. He did such good work with vaccines. He saved thousands of lives. And there's a Dorothy something. She runs that company, A Charitable Earth. She's raised billions. And this couple in Cambridge, both professors. Ian and Barbara Chesterton. Rumour has it, they've never aged. Not since the sixties. I wonder.
CLYDE: That'll be us, one day.
RANI: Still out there, fighting.
SARAH JANE: Echoes of the Doctor, all over the world. With friends like us, he's never going to die, is he?