Snoopy's older brother Spike comes to visit, but when he arrives, the dog is so thin and sickly looking, Lucy decides to take on the task of nursing him back to health.
Halloween has arrived; Snoopy is a World War I ace; Charlie Brown, Lucy, and Pig Pen are trying their luck trick-or-treating; and Linus can hardly wait to see the Great Pumpkin.
Charlie Brown and Peppermint Patty decide to trade their terrible right fielders; Peppermint Patty gets Lucy, and Charlie Brown gets Marcie and a pizza.