Aliens see an old TV show(Think star trek) and think that they are historical documents, and model their lifestyles(And pretty much everything else) based on the show. They enlist the original cast(Thinking they're this awesome elite space crew) to help them with a serious problem.
Guy Fleegman: I changed my mind. I wanna go back. Sir Alexander Dane: After the fuss you made about getting left behind? Guy Fleegman: Yeah, but that's when I thought I was the crewman that stays on the ship, and something is up there, and it kills me. But now I'm thinking I'm the guy who gets killed by some monster five minutes after we land on the planet. Jason Nesmith: You're not gonna die on the planet, Guy. Guy Fleegman: I'm not? Then what's my last name? Jason Nesmith: It's, uh, uh - -I don't know. Guy Fleegman: Nobody knows. Do you know why? Because my character isn't important enough for a last name, because I'm gonna die five minutes in. Gwen DeMarco: Guy, you have a last name. Guy Fleegman: DO I? DO I? For all you know, I'm "Crewman Number Six"! Mommy... mommy... Sir Alexander Dane: Are we there yet?
[Reading a tactical display] Guy Fleegman: Hey guys, there's a red-thingy moving toward the green-thingy. Jason Nesmith: What? Guy Fleegman: Red-thingy moving toward the green-thingy. I think we're the green-thingy.