'Dollhouse' (8PM, Fox) series finale
It's 2020 and the world is in chaos -- chaos! -- as Joss Whedon's first post-'Buffy' series comes to a close. The global population is running amuck and is, in fact, on the brink of extinction since Rossum lost control of the imprinting technology. It's up to Echo and her cohorts to, literally, try to save the world, though, sadly, no matter how spectacular their efforts prove to be, it's too little, too late to save the series from two seasons worth of lackluster ratings.