In the fourth part of the series, Diarmaid MacCulloch makes sense of the Reformation, and of how a faith based on obedience and authority gave birth to one based on individual conscience. He shows how Martin Luther wrote hymns to teach people the message of the Bible, and how a tasty sausage became the rallying cry for Swiss Reformer Ulrich Zwingli to tear down statues of saints, allow married clergy and deny that communion bread and wine were the body and blood of Christ.

When Norwegian gamer Mats Steen died at age 25, his parents mourned what they thought was an isolated life. It was only once they had access to his blog that they discovered the deep friendships he created virtually before passing away from a degenerative muscular disease. They were unaware that Mats had long been leading a vibrant digital life that had left a profound impact on a community of fellow gamers.
The film takes us on a journey through the breadth of Mats Steen's adventurous online life, introducing us to Ibelin, his charismatic World of Warcraft persona. Through reconstructed animated moments from Mats' gameplay, narrated entries from his blog and interviews with people who knew him as Ibelin, a picture of a remarkable young man emerges, one that underscores how community and soulful relationships can transcend the boundaries of the physical world.