User blog comment:Wizard Zaadock/The Man Who Cried Wolf/Season Unending/@comment-4984498-20120831224741

For season unending, since you have started the Civil war you must either: Complete battle for Whiterun or the Jagged crown. After you complete these missions you may talk to ulfric. You may also just complete the civil war as another workaround and you won't have to do the quest at all.