Bugs wakes after a long night to find that a burly construction worker, whom Bugs derisively calls "Hercules", has just shoveled up his rabbit hole near a highrise building being built. Bugs kindly asks the construction worker to put his hole back, but the worker simply dumps Bugs and the dirt into a dump truck. Bugs angrily shouts "Hey, you big gorilla! Haven't you ever heard of the sanctity of the American home?" before another mound of earth falls on him and the truck hauls him away.
But a when the worker exits the crane, Bugs calls him from the building under construction, "Yoo hoo! Hercules! Here's a message for ya!" He drops a brick on him, along with a telegram labeled "Eastern Onion" reading "Okay Hercules... You asked for it... Bugs Bunny," then a steel girder, and then plays with the elevator controls while the worker is inside the elevator. The worker manages to get the better of Bugs, knocking him out temporarily. Bugs wakes with strange fits and walks oddly through a harrowing series of moving girders and other objects, finally regaining his senses when he falls into a barrel full of water. When Bugs recovers and sees the worker taking the lunch of a timid worker for himself and sending the hapless man back to work, this infuriates Bugs. Bugs takes a look at the floor plans for the building, then drops a single red-hot rivet down a hole, which bounces around through an elaborate maze of objects, until it burns through a rope holding up a giant steel pipe. The pipe then falls on top of the worker, who echoes Candy Candido's radio catchphrase, "I'm feelin' mighty low." Bugs says, "Do I get my home back, or do I have to get tough?" The worker finally waves the white flag in defeat. The next shot is of the finished skyscraper, with a slight indentation in the middle. At the bottom, Bugs sits in his hole, the building has been built around it, and declares, "After all, a man's home is his castle."
- Candy Candido - "I'm feelin' mighty low"
On ABC, the part where Bugs throws a brick to the construction worker's head with a message attached was edited to remove the brick actually making contact with his head and the shot of the brick on the construction worker's face before he rips the note off and reads it.
- The original "Bugs Bunny In" title to the cartoon was replaced when it was reissued in the 1959-64 season. This also happened to "Hot Cross Bunny", "Knights Must Fall", and "Rabbit Hood" when reissued at the same time.