For more than 25 years, "Dateline" has brought viewers investigations into some of America's greatest mysteries.

Five cookie bakers have to prove their skills in two rounds, while the jury decides which baker celebrates the best Christmas ever and is rewarded with prize money of 10,000 dollars.

Georgie and Mandy navigate the challenges of adulthood, parenting, and marriage while raising their young family in Texas.

Each year, over 600,000 people are reported missing in the United States. Gabi Mosely and her crisis management team use unorthodox methods to find the forgotten people.

Each year, over 600,000 people are reported missing in the United States. Gabi Mosely and her crisis management team use unorthodox methods to find the forgotten people.

Spanning four tumultuous decades during The Troubles in Northern Ireland.

Spanning four tumultuous decades during The Troubles in Northern Ireland.

Spanning four tumultuous decades during The Troubles in Northern Ireland.

Spanning four tumultuous decades during The Troubles in Northern Ireland.

Spanning four tumultuous decades during The Troubles in Northern Ireland.