Calvin runs into the house and yells to Mom that a big dog knocked him down and stole Hobbes. He holds her leg while saying he tried to catch him but couldn't. He's lost his best friend. Mom tells him that if he didn't carry Hobbes around everywhere, things like that wouldn't happen. Calvin says there isn't any problem you can't add guilt to and make it worse.

Calvin looks out his bedroom window at night. He can't sleep worrying about Hobbes. He sniffles and wonders what he's done to deserve this. He sticks his head out the window and yells whatever it was, he's sorry already.

Calvin writes out a flyer saying Hobbes is lost. Mom suggests he describe Hobbes. Calvin writes that he's quiet, somewhat peculiar, a good companion in a weird way. Mom tells him that she meant to write what he looks like.

Susie Derkins is walking along and comes upon Hobbes lying in the grass. She notices it looks like a dog has been chewing on him. She picks him up, figuring a tea party with other stuffed animals might not hurt.

Calvin is walking along a wall yelling for Hobbes. Susie asks if Calvin would like to join her tea party. Calvin angrily declines, saying he's looking for his friend who's been kidnapped by a dog. Susie sits at her tea set talking to Mr. Tiger (Hobbes) about how rude Mr. Calvin is.

Calvin decides to ask Susie to keep an eye open for Hobbes. When he goes back to tell her, he sees Hobbes at the tea set. Calvin kisses Susie's hand and thanks her profusely for finding Hobbes. Susie talks to her rabbit about what a gentleman Mr. Calvin is, but notices all the cookies are gone.