In a special episode: Allen is scared to death that his parents Andy and Annie are going to get a divorce because Andy and Annie have been arguing a lot lately, more than usual. It turns out that Allen is right, and Andy and Annie decide to get a divorce. Later, Punky finds Allen in the treehouse with a lot of his things. Allen says he's never leaving the treehouse, and Punky is shocked by the reason why -- Allen has to move to Kansas with Annie. Allen doesn't want to leave his friends and move to an unfamiliar place. Henry comes outside and tells Allen that Annie is looking for him. Punky and the gang say a tearful goodbye to Allen, and Punky tells Allen that she and the gang will always be Allen's friends, and that they will always stay in touch with Allen. (thetvdb.com)