Doctor Who Season 4 Episode 13

The Doctor: Rose, you've been in a parallel world. That world's running ahead of this universe. You've seen the future. What was it?
Rose: It's the darkness.
Donna: The stars were going out.
Rose: One by one. We looked up at the sky and they were just dying. Basically, we've been building this… travel machine, this… dimension cannon, so I could… well, so I could…
The Doctor: What?
Rose: So I could come back. (The Doctor grins) Shut up. Anyway, suddenly it started to work and the dimensions started to collapse. Not just in our world. Not just in yours, but the whole of reality. Even the Void was dead. Something is destroying everything.
Donna: In that parallel world, you said something about me.
Rose: The dimension cannon could measure time lines. It's weird, Donna, but they all seem to converge on you.
Donna: But why me? What have I ever done? I'm a temp. From Chiswick!