Rosina tells her little ones, Jethro and Bianca, to behave while she is at work, but once she leaves their apartment, Bianca, the youngest and newest member of the family, pesters Jethro with lots of questions about life. Already jealous of Bianca, Jethro becomes impatient with her nonstop questioning, while she becomes worried about his antics. Will Jethros jealousy and bad behavior cause the little family to break up, or will he finally bond with Bianca when he realizes that Rosina has love enough for both of them?