Arnold Schwarzenegger is a policeman in California. He is following a man in the mall. A man named Danny and a woman come to meet him in a back room to exchange goods for money. Detective John Kimble is right on their trail. Danny tells Mr. Chris that he found his wife and son hiding in Oregon while changing his tire one day. Mr. Chris then shoots the messenger. Detective John Kimble arrests Mr. Chris while he is talking to his mother in the mall. The girl refuses to testify against Mr. Chris so Mr. Kimble decides to persuade her otherwise. He tells her that he will follow her everywhere unless she does. It does the trick.
Mr. Kimble is assigned to find Mr. Chris’ wife so that she can testify against him since it is doubtful that the druggie’s testimony will do the trick. Ms. Ohara is assigned to be his undercover wife. She will be an undercover kindergarten teacher while detective Kimble finds the child’s mother. Sadly, she gets food poisoning. The whole trip is very miserable for her. She meets his pet ferret while sleeping in the car. The next morning she doesn’t look any better so Detective Kimble decides to teach kindergarten until she gets better.
He meets the principal who says that she will keep her eye on him. A little girl has to go to the bathroom. He has to get another teacher to help her undo her overalls. When he gets back the class is doing anything and everything. The teacher gives him some advise, kindergarten is like the ocean. You never turn your back on it. He quickly runs out of the building and gets his ferret from the car. When he gets home he collapses on the bed.
The next day he meets many of his students parents. Later on he plays the game with the kids called who is your daddy and what does he do. He has a headache. One of the kids thinks he has a tumor. Then the fire alarm goes off. All the children go running out screaming. The principal looks down on the incident.
That night Mr. Kimble goes out to eat with Ms. Ohara. They bump into another teacher and eat with them. Ms. Ohara tells them that she is John’s sister. Will they ever find Mr. Chris’ wife to testify against him? Will Mr. Kimble survive Kindergarten? Watch and find out.