Emily Elizabeth is leaving on a ferry to go to her cousin's wedding. She explains to Clifford that he can't come along because her cousin is allergic to dogs. Clifford fantasizes. He's at the wedding. Right in the middle of the wedding vows, he sneezes. So maybe it's better that he doesn't go. Charley's going to be taking care of him for the day. Throughout the day, Clifford and Charley have a great time together. They have a race, which Clifford wins. They play baseball. Clifford hits the ball out of the park with one of his ears. They play frisbee with a garbage can lid. Finally, that night, they watch the sunset together. It's time for bed. Charley and Samuel have set up a special tent for Clifford and Clifford seems to like it. They go inside. But once they're inside, Clifford Start to cry about miss Emily Elizabeth. He imagines her face in the moon and starts howling. Charley comes out. He realizes that this is the first time that Clifford's ever been away from Emily Elizabeth at night and he misses her. His howling wakes the entire neighborhood: Victor and Pedro (who sleep together in a bunkbed), Sheriff Lewis and T-Bone, Mr. and Mrs. Bleakman and more. They all head to Charley's to see what's the matter. T-Bone asks Clifford what's wrong and he tells him that he misses Emily Elizabeth. Mr. Carson has an idea. When he was young, his Dad would take him for a ride in a truck and that would put him to sleep. So he gets a big truck and puts Clifford in the cargo load. It works. As they drive along, Clifford dozes off. But when they return to Charley's, Clifford wakes up again. Mr. Bleakman's ready to give up, but Mrs. Bleakman has an idea. Mr. Bleakman should sing him a lullaby. He's reluctant at first, but tries it. Mrs. Bleakman and soon, everyone else, joins in. The lullaby only succeeds in putting everyone to sleep except Clifford. With everyone now sleeping around him, Clifford still can't sleep. Charley's awake. He tells Clifford that they're with him and they're going to stay right there until he falls asleep. Finally, with everyone around him, Clifford does fall asleep and sleeps through the night. In the morning, he's the first to wake up. Charley congratulates him sleeping through the night. Emily Elizabeth arrives. She notices everybody there and so they explain to her what happened. She hopes that Clifford wasn't too much trouble, but they agree he was none at all. It was kind of fun all sleeping through the night together.