Nathan quotes from The Sarah Jane Adventures

[chasing Luke] You're as slippery as the Bane scum that made you!

Oh, these new slim-line flesh-suits... they might handle the gas exchanges better, but they're a bit on the snug side. [he unzips his forehead and emerges from his disguise]

Luke

You're Slitheen!

Luke

But you're skinny!

Amazing, isn't it? With this technology I can eat all I want and still be a size eight.

Luke

[to Nathan] And you?

What? Don't you remember me, Luke? How you killed my family and left me locked in a sealed room to die?!

Luke

Carl!

Same Slitheen, different skin. I teleported out and survived. My father wasn't so fortunate. And now, I'm going to get my revenge.

Sarah Jane

We'll be dead long before it hits us. The gravitational effect will tear the whole planet apart. It's already happening.

Well, at least I'll be able to tell my family that you're dead, Sarah Jane Smith. [Activates his teleport control] I'm teleporting back to the ship.

Alan

[Grabs the teleport control from Nathan] No, you're not. You're as much to blame for all this as Mister Smith. You're staying here.

Sarah Jane

And even if you did go, your ship would be torn apart by gravitational disturbance. You would die. On the other hand, if you help me, we might all just have one chance to survive.