That was jaw-droppingly awesome. Literally. Superman is on a world with a red sun, so he doesn't have his powers. He doesn't know where he is, all he has are some cars and random stuff that got beamed onto this world with him, and he can hear a JLA locater signal over his com. So what does he do?
HE GOES ON A ROAD TRIP.
He takes the swankest car of course, and in his trunk are the candy bars that Flash had commercials for in an earlier episode. That earlier episode had a TV jerk read from a book titled The Innocent Seduced. I want whoever writes this show to have my babies. Anyways, when said swank car runs out of gas, he says Should've taken the compact. Bwahaha, booyah Supes!
And then he fights some wolves and wins. Then he makes them his sled dogs while wearing the former pack leader as a coat. Hardcore.
Eventually he finds a crashed and abandoned Watchtower and...dum Dum DUM...Vandal Savage! (a villain) Who is looking totally snazzy, and Supes looks a little ridiculous next to him in his caveman attire, but that's ok, nothing really matters except how Vandal Savage was hilarious. You see, Vandal Savage is immortal, and he's been alone on Earth for a few thousand years.
Supes: You're insane.
Savage: True, but that doesn't mean I'm not good company. Say, you want to come over to my house?
Supes wanders around the house at night, and stumbles across Professor Xavier's room some high-tech...thing...and then reminds me why I love immortal villains.
Supes: You've got a time machine!
Savage: I spent several decades working on it, then I lost interest.
Supes: Why didn't you finish it???
Savage: No attention span I suppose.
Oh right, but before that, he tells Superman how he killed the world. Naturally, Superman's response is to punch Savage a few times, but he resists killing him.
Supes: What now?
Savage: Lunch?
God, he says it the way Rob says "Kitty?"!! I've watched that like 8 times and it still cracks me up.
Supes: (browsing Savage's library) Self-help books? You don't seem the type.
Savage: I read whatever I can find. Anyway, I've got issues, what with my destroying the Earth and all.
And then they fight some giant "roaches" that actually look more like elephant beetles, and everything ends happily ever after.
Seriously, this episode was non-stop awesome. Pretty much all JLA eps are awesome, and of course I skipped ahead and watched Flash and Substance and that was fantastic, but at this moment this is my favorite JLA ep.
Everyone should be watching this show. I mean it kinda hits the ground running and I'm not sure how well people that don't read the comics can follow it, but you don't have to know anything about comics to understand how Superman roadtripping in a Cadillac across a seemingly alien landscape while dressed like a caveman is the greatest thing I've ever seen.
Edit: Marcelo wrote a prequel!
http://users.livejournal.com/__marcelo/280229.html