Read along with Disney! It's Christmas Eve, and Phineas and Ferb have just learned that Danville's fifty-foot prize evergreen was destroyed in a freak accident, which means no tree-lighting ceremony! So the stepbrothers and their friends head into the mountains to find a new tree. But little does the gang know that the evil Dr. Doofenshmirtz is plotting to make sure no Christmas festivities happen! Will their trip be a success? Or will this be the unmerriest Christmas ever?