John Nordeen and Kay Lee lost touch after serving in the Vietnam War. They recall how, decades later, they reconnected. "John, we were so lucky," Lee said. "We survived Vietnam and we're still here."

During the Great Flood of 1993, the mutual efforts of a then-prisoner and a beauty shop owner to protect a tiny Illinois town briefly brought them together. After 25 years, the two reconnect.

When Marlene Shay lost her son Adam to an opioid overdose, his organs went to Karen Goodwin, who was in treatment for drug addiction. If it wasn't for him, Goodwin tells Shay, "I wouldn't be here."