For nine days, the nation waits for news as to the whereabouts of missing 3-year-Michael and 14-month-old Alex Smith; then, there's a shocking break in the case; the boys' father, David, shares his heartbreaking story; a look at the investigation.

Actor-musician David Cassidy ("The Partridge Family") experiences the pressures of fame as a teen idol in the 1970s; in the end, his death is surrounded by mystery, leaving his family, friends and fans with more questions than answers.