Masha offers to be a babysitter for Thaddeus for the whole day. It soon turns out that she was too hasty. The first problem becomes apparent as soon as the baby needs to be swaddled. Miki comes to her aid. Julia is surprised by his feelings for children, and when she mentions to him that she herself is tired of her hyperactive Gabbro, they decide to visit the zoo together. Meanwhile, Masha's day with the baby drags on indefinitely. To top it off, she forgets a bottle of milk on a park bench, but this time Mirjana helps her. Tatyana, on the other hand, is completely blown away by the baby.