“Great Alaskan Earthquake” – Tuesday, December 18, 2018, 8:00-9:00 p.m. ET (check local listings)

On March 27, 1964, the largest earthquake ever recorded in North America struck Alaska, causing catastrophic damage and 131 fatalities. Two children who survived search for childhood friends whose families moved away immediately after the quake. Michelle wants to thank a friend and her mom for shielding her from harm, and Dan searches for a former Little League teammate.

“Korean War Brothers in Arms”  Tuesday, December 25, 2018, 8:00-9:00 p.m. ET (check local listings)

Although the fighting in the Korean War ceased in 1953, two men have never forgotten the comrades who helped them make it through tough times. Jim wants to show his gratitude to two lieutenants who inspired him to be brave in battle, and Tony hopes to thank a friend who boosted his spirits aboard a hospital ship.

“Escape from Cuba”  Tuesday, January 1, 2019, 8:00-9:00 p.m. ET (check local listings)

In 1959, Fidel Castro’s regime came to power, changing the lives of the Cuban people. Two men who fled the country as children seek to find those who helped them come to the U.S. Nelson left Cuba in 1961 as part of Operation Pedro Pan and hopes to reconnect with the family who took him in, while Juan looks for the shrimp boat captain who brought him and his family to safety during the Mariel boatlift in 1980.

“The Fight for Women’s Rights” – Tuesday, January 8, 2019, 9:00-10:00 p.m. ET (check local listings)

In the 1970s and 80s, many women were active in the movement for gender equality in the workplace and at home. Two women who faced these challenges search for the friends and mentors who changed their lives. Lynn, the first flight attendant to become a commercial pilot,  hopes to find the first female pilot she ever met, while activist Zoe searches for the feminist leader who inspired her to join a demonstration and hunger strike.