IGN reports that the new, extra episode of Telltale's The Walking Dead series will be arriving on both Mac and iOS very soon. And by "soon," we mean this week for the Mac (on Steam and Telltale's site), and July 11 for iOS.
The episode, first revealed back at E3, is called "400 Days," and is supposed to serve as a halfway step between the game's first season and the upcoming second. The Walking Dead game is critically acclaimed as one of the best games of last year, and while I played (and enjoyed) it on the Xbox 360, it also earned a lot of praise on iOS as well. If you've played the first series already, you'll want to try and play this episode on the same platform, because your choices should carry over in the storyline.
I don't want to know anything about the episode before I play it, but in case you do, here's a launch trailer from Telltale that you can watch now. I'm going to pass, though -- this game and this series are so great that I know I'll play this episode no matter what. We look forward to continuing this very gripping story.