S6·E25 The Seeker

Everyone does their best to cheer Donna up after Eric disappeared before the wedding. Midge even shows up to console her daughter, but her arrival causes an awkward scene with Bob and Pam. Also, Hyde lands in the hospital after he takes Donna to the water tower for a talk. While Kitty looks after Hyde, she goes through his medical records and stumbles upon a life-altering piece of news.