Denver Comic-Com- Stan, Kyle, Cartman and Kenny are lining up at the 'Doctor Who' stand, waiting to meet Matt Smith.

Stan: Dude, I can't wait to meet Matt Smith. He's my favourite doctor.

Kyle: Mine is Tom Baker.

Cartman: Guys, can you hold my place in line? I need to shit badly, or else I'm gonna have a fudgie in my underwear.

Stan: Then just go.

Cartman runs off to find the bathroom. He eventually finds a row of porta-potties; he knocks on the first one.

Man inside porta-potty: Occupied!

He moves onto the next one; also occupied. In fact, all of them are occupied.

Cartman: Some days, you just can't get rid of a shit. (He spots what he thinks is a porta-potty) Finally.

He enters the 'porta-potty'. It zooms out to reveal he hadn't stepped into a porta-potty, but a familiar blue police box.

Meanwhile, the boys are nearly at the front of the queue; Cartman still isn't back yet.

Stan: Cartman should be back by now, what's taking him?

Kenny: (Likely the shit was so massive it made him pass out).

Stan: Guys, this is serious. Let's find him.

Though they don't like it, they abandon their place in line to find Cartman. They look in all the porta-potties.

Kyle: He's not here.

Kenny: (What about that one?)

He points to the blue box.

Stan: Why would he go number two in the ReTARDIS?

Kyle: Let's check, just to make sure.

The three boys approach the ReTARDIS. They open the door.

Cartman: Ah! Oh, it's you.

Kyle: Cartman! Why the hell would you take a shit here?

Cartman: Because this is a very nice porta-potty.

Kyle: This is the ReTARDIS. We shouldn't even be in here! Although, it's much more impressive in person than on the TV.

The boys' curiosities get the better of them, and they start exploring the interior.

Stan: Look at all these clothes! (He puts on a Panama hat and grabs a question-mark umbrella) Unlimited Rice Puddings!

Kenny comes over.

Kenny: (Let me try them on).

Cartman is over at the control panels. He sees a button.

Cartman: What does this do?

He presses it; suddenly, the door closes, and the ReTARDIS makes a familiar grinding noise. It powers up.

Kyle: What did you do this time, fatass?!

Cartman: Why are you blaming me?! You're the ones who got curious!

Stan: Uh, guys! Hold on to something! None of us know how to drive this thing!

The boys latch onto something, as the ReTARDIS disappears, into the time vortex.

To Be Continued...