He is initially met by the Dragonborn as a random encounter. He will appear in one of the major cities of Skyrim, where he offers them a chance to join the Dawnguard, a recently reestablished ancient order of vampire hunters.
Later on, he is seen outside of Fort Dawnguard, practicing his aim with a crossbow. When asked about the bow, he mentions that it is common for people not to be familiar with it, as it is a Dawnguard specialty. However, he will give the Dragonborn a standard crossbow and some steel bolts to practice.
Upon the completion of the quest "Prophet," he becomes available as a follower. If the Dragonborn is not an Orc, and also hasn't become Blood-Kin through some other means, he will also send word to Orc strongholds throughout Skyrim, so that they allow the Dragonborn entry.
- It is possible for Durak to be killed during the quest "Kindred Judgment." To avoid this, it is recommended for the Dragonborn to face Harkon immediately, and skip as many the fights with other vampires as possible.