Jason Dolley and Bridgit Mendler prepare to defend their treetop fort in this new still from Good Luck Charlie.

In the upcoming episode “Up A Tree,” Bob (Eric Allan Kramer) cuts a deal with Mrs. Dabney that if he chops down their tree that blocks her sunlight, she will stop her dog from barking. The tree, which houses PJ and Teddy’s (Dolley, Mendler) childhood treehouse, has sentimental value, so they stage a sit-in protest to prevent it from getting chopped down.

When Bob does everything he can to get them out of the treehouse, Amy (Leigh-Allyn Baker) sides with her kids and joins their protest.

“Up a Tree” premieres Sunday, June 6 @ 8:30PM ET/PT on Disney Channel. 10+ stills inside…