Policist John Kimble je na ulicah Los Angelesa doživel že marsikaj hudega, zato ima trdo kožo. Toda nič ga ni moglo pripraviti na to, kar ga čaka na skrivni nalogi v vrtcu. Pod krinko vzgojitelja mora pred nevarnim zločincem zaščititi enega svojih malih varovancev. Seveda se John med malčki sprva ne znajde najbolje, vendar mu kmalu tudi vloga vzgojitelja zleze pod kožo. Poleg tega se zaplete v romanco z učiteljico Joyce, življenje pa mu greni le nepridiprav, s katerim ga čaka napet končni obračun.
John Kimble is a tough city cop who's been on the trail of drug dealer Cullen Crisp for years. He finally tracks Crisp down but it seems the only person that can testify against him is his ex-wife. The problem is she's disappeared and all Kimble knows is the name of the school in Oregon where her son attends. When things don't quite go to plan, Kimble finds he has to go undercover on his toughest assignment yet - Kindergarten teacher!