The influenza virus is an recurring nightmare, killing thousands of people each year. Learn how the virus attacks its host, why it's nearly impossible to eradicate, and what scientists are doing to combat it.

What is cancer, and how does it start? Find out how genetics play a role, which types of cancer are the most prevalent, and what is being done to fight this deadly disease.

The Bears go to the movie theater and watch a film titled, Germs. Iced Bear and Grizzly find the movie to be mildly entertaining, while Panda gets paranoid and scared of germs. While in the subway, Panda visualizes the germs in the environment and how they spread.

Jane expresses concerns about her obligations during her sister's wedding, and Kevin helps her practice saying no.

Matthew talks to Mary about her marriage. He expresses his happiness that she has found a person who would be willing to do anything for her and indicates that he is in full support of her decision to marry Richard.