In her first television interview, Jenna Bush speaks candidly with Diane Sawyer about life as the first daughter, her engagement to Henry Hager, her work with UNICEF and her emotional new book, "Ana's Story." Now a 25-year-old elementary school teacher, the President's daughter also speaks openly about her dad, how she feels about the war and growing up in a fishbowl. The interview will air on "20/20," FRIDAY, SEPTEMBER 28 (10:00-11:00 p.m., ET) on the ABC Television Network.

Sawyer travels to Jamaica, where Bush talks to children about tolerance, dismantling stereotypes and addressing stigmas associated with HIV AIDS. During the interview, she tells Sawyer about her job with UNICEF, where she taught in four countries in Latin America and the Caribbean. She documented the lives of kids living in exclusion, which means living in extreme poverty, with HIV AIDS, in abusive households and without access to school or medical care. It was through that experience that she met a woman she calls "Ana," a 17-year-old mother living with HIV who inspired Bush to write a book based on her life.