Sony Online Entertainment devs detail its first case (a.k.a. quest) in DC Universe Online, featuring the infamous Superman-killing Doomsday. After an epic brawl, you'll be taking your hero/villain to aid Superman in bringing Doomsday to justice or ride shotgun with Lex Luthor for his questionable enterprising.
Look for the superhero MMO in early 2010 on the PC and PS3.
DC Universe Online Doomsday Trailer