A little girl (Sylva Kamenická, 4 or 5) is nude in several scenes. First side nudity sitting on a potty, then topless running and playing wearing only panties, and finally fully nude being dressed for bed.
The younger boy is washing himself and a puppy in a tub. The other is dealing with the schoolbag it has messed in. The older one then hangs the bag to dry by a window and is joined by his brother. Both boys wear nothing.