Charles and Caroline sign Mary up for the blind school in Iowa. At first, Mary is very reluctant to learn anything at the school. However, after being with her teacher, Adam Kendall, for a while, she turns her outlook on life around. Mary is such a great student that Adam asks her to help her teach at a blind school with him.

Adam makes a decision when his sight returns, after an accident at Jonathan's freight warehouse. Mary feels that Adam may be slipping away from her.

Adam goes for his test and hopes to get a scholarship. But far away from home, he is robbed and beaten and after racing to continue his test (2nd part), he catches a fever.

Adam and Mary move back to Walnut Grove so that Adam can start a law practice there. Adam's first case involves a person who has been swindling people in Walnut Grove. Adam believes the person is innocent until he finds out the truth. Adam convinces the jury to have pity on this man who was just trying to help out his family before he dies.