Telltale Games now offers the first chapter of Minecraft: Story Mode, their episodic adventure based on the sandbox construction game. This is available individually or as part of a season pass, while a retail version is expected on October 27th with the first chapter and access to subsequent releases online. Here's a new trailer, and here's a synopsis:

In Minecraft: Story Mode, playing as either a male or female hero named 'Jesse,' you'll embark on a perilous adventure across the Overworld, through the Nether, to the End, and beyond. You and your friends revere the legendary Order of the Stone: Warrior, Redstone Engineer, Griefer, and Architect; slayers of the Ender Dragon. While at EnderCon in hopes of meeting Gabriel the Warrior, Jesse's friends discover that something is wrong... something dreadful. Terror is unleashed, and you must set out on a quest to find The Order of the Stone if you are to save your world from oblivion.

The season will feature Patton Oswalt as male Jesse, Catherine Taber as female Jesse, Brian Posehn, Ashley Johnson, Scott Porter, Martha Plimpton, Dave Fennoy, Corey Feldman, Billy West, John Hodgman, and Paul Reubens. The launch trailer features behind the scenes interviews with the cast about the all-new series.