A little boy resents his new baby brother, which is a natural and common situation. But Dr. Jamison notices that the child's resentment of the baby is very intense and deep.

Dr. Jamison misinterprets a rush call to the children's zoo, believing his patient is a child, and runs into a series of misadventures with a chimp.

Puni gets arrested, seems she and some other women are trying to protest pollution, caused by the empire of Lady Whittaker and the women manage to get Sean arrested too. Then he meets Lady Whittaker, who turns out not to be British but an islander, and love blooms.