Microsoft store has the Telltale Minecraft story mode episodes 1-5 for free right now
THE ADVENTURE OF A LIFETIME IN THE WORLD OF MINECRAFT *Get the new Adventure Pass to access Episodes 6-8!* In this five part episodic series, 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, you and your 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.
*EDIT* I downloaded and had full access to episodes 1-5, with extra option to purchase new season's episodes 6-8.To my knowledge I did nothing special, and I know I was not charged for anything. There are several people that have mentioned they only received episode 1. Microsoft didn't have any time sensitive identifiers on their sale. I apologize to those who were not able to download all episodes, I changed the title to reflect more accuracy since it works for some and not others, this is only my second post so I'm still learning nuances and apologize for any convenience.