The short follows the inner workings of Paul, a man living in 1980s California. Paul's Brain, Heart, Lungs, Stomach and even his Bladder and kidneys all awaken on a typical day for work. Heart expresses desires to try a large breakfast special at the urging of Paul's Stomach, play around on the beach, and try out a new pair of sunglasses at a stand run by an attractive vendor. However, Brain simply wants Paul to get to work on time at Boring, Boring & Glum and avoid possible hazards along the way. Fed up with Heart's constant sidetracked nature, Brain takes away Heart's control so that Paul can get to work on time. He and dozens of other employees sit at desks and enter data into their computers, moving in monotonous unison. Brain takes notice of the dreary routine of Paul's life and comes to realize that this cycle will eventually lead to his death as a sad, miserable, lonely man.
During lunchtime, Brain gives control of Paul back to Heart, who sends him off to partake of the activities that Brain had passed up on the way to the office. Paul returns to work afterward, happy and content, and begins to dance to a lively beat whose energy quickly spreads to his coworkers and even to his elderly bosses. During the credits, Paul is shown performing other fun activities with his bosses and coworkers, and apparently marries the sunglasses vendor and starts a family with her.