Calvin is trying to comb his hair. Some of the hair in the back sticks out. Hobbes tells him maybe he needs a haircut. Calvin agrees, but says barbers never cut it the way he wants. Hobbes decides to cut Calvin's hair for him. Hobbes is hoping Mom will give him eight bucks for doing it.

Hobbes asks Calvin how he wants the hair cut in the back. Calvin tells him, but Hobbes wonders if he wouldn't rather have it real short. Calvin says no, but Hobbes insists the hair would look good real short. Calvin asks if Hobbes is trying to tell him something. Hobbes replies no, but that he thinks it should be real short....especially right there.

Calvin asks Hobbes if he made a mistake. Hobbes says no, he can cover it up. Calvin wants to know what he's covering up. Hobbes says he can't help it if Calvin's head has funny bumps that make the scissors go screwy. Calvin yells that Hobbes' head is going to have funny bumps if he doesn't tell him what he did. Hobbes replies "oops". Now, Calvin wants to know why Hobbes said "oops". Hobbes decides to try parting the hair from ear to ear.

Calvin threatens Hobbes that the haircut better look good. Hobbes tells him it looks kind of "new wave". Hobbes further explains that it's sort of "punk". Calvin wonders if that means a mohawk. Hobbes says it looks sort of like a mohawk in some places. Calvin wants a mirror. Hobbes tells him that hats are all the rage this year.

Calvin looks in the mirror and is horrified. All his hair is chopped down. He says it looks like it was cut with a weed-eater. Hobbes thinks it's nothing a little tonic and combing can't fix. Calvin runs away, calling Hobbes a menace. Calvin figures Mom will blow her blood vessels if she sees his hair like that. He wonders what to do. Hobbes puts a bandanna on Calvin's head. He thinks it gives Calvin the "Lawrence of Arabia" look. Calvin thinks it gives him the "lobotomy patient" look.

Calvin is in a 1940's detective outfit in his office. He's Tracer Bullet, private eye. The door opens, and in walks trouble...a brunette. Mom tells Calvin to take off his hat at the dinner table. Calvin thinks she's a pushy dame, but she has a case.

Mom tells Calvin to remove his hat. He takes it off, and Mom shrieks that "You cut your hair!". Calvin says that he didn't, but that Hobbes did. Mom wants to know why he cut his own hair. Calvin reiterates that Hobbes cut his hair. He asks if she thinks he'd do that to himself. Mom gets an "of course I do" look on her face. Calvin then yells "Well, I didn't!"

Calvin and Hobbes are walking along when Calvin tells him that Mom said there was nothing that could be done except to wait until the hair grows out. Some barber Hobbes is. Calvin says that meanwhile, he has to walk around like he has mange. He hopes Hobbes is happy. Hobbes gets an angry expression and says he's not happy. He says that Calvin stiffed him and owes him eight bucks for the haircut. Hobbes is smiling as Calvin chases him after his remark.

Hobbes tells Calvin he didn't mean to give him a bad haircut. Calvin says that doesn't do him any good, but Hobbes says he can make it up to him. Hobbes has a yellow magic marker. Hobbes tells him he'll just draw on some hair. As he does, he says it's starting to look better already.

Hobbes tells Calvin that his hair doesn't stick up like it used to, but at least his head's yellow again. Calvin apologizes to Hobbes for getting so mad at him. He thanks Hobbes and calls him a life saver. Calvin proudly walks off to show Mom his colored head. Calvin is in the bath tub with his head lathered up. Hobbes wonders if it will come off. Calvin tells him to keep his brainy ideas to himself from now on.