The Ascension of Duran is a Starcraft: Brood War single player campaign designed to tell the story about Samir Duran between Episodes V and VI. Basically Duran is tricking Kerrigan into thinking he is on her side and wants to help her out. He does this to gain access to the Zerg strains, and along with other technology, he eventually tricks all three races into helping him crease the most powerful being: The Hybrid.