Caroline Davis was about to make a mistake that could have severely damaged her car. Then a stranger stepped in, with an offer of help that brought her to tears.

In first grade, Clara Temple had to get a hot lunch at school for the first time. The process was confusing. She ended up in tears. Then a cafeteria worker stepped in — and made a lasting impression.

On one of the hardest days of her life, Clarice is given a moment of respite by her two unsung heroes

A special reunion conversation between Megan Atherton and the woman who changed the course of her life.

Emma Carlson Berne was at a restaurant, feeling overwhelmed with her three young children. Then a stranger came over with words she's never forgotten: "What a beautiful family."

After her car key broke, Betsy Cornwell was stranded and all alone. Then the unlikeliest of heroes came to her aid.

After Brian Perkins refused a stranger's help, her actions changed his life forever.

A transit worker watched Donald Kabara and his son hug goodbye. Later, he was pleasantly surprised to see his son return with another hug — prompted by the worker.

Malcolm Campbell remembers Don Lawson, the high school civics teacher who helped him understand the true value of education.

As Samantha Hodge-Williams waited on the operating table for emergency surgery, she felt alone and scared. Then the anesthesiologist appeared.

Corey Widmer says the experience has made him think more about how he can help others.

Nora Durkin called a hotline to report abuse she says she experienced as a child. The woman who answered gave her the validation she had needed for years.

After Megan Atherton was evicted from her home, her car broke down. She had a long drive ahead and nowhere to go, until a kind stranger stepped in.

In 2014, Wil Davenport was being treated for depression at an inpatient mental health program. One day, his therapist issued a challenge that renewed his sense of purpose.

In 2014, Susan Kahn was in the hospital with terminal cancer, unable to attend her daughter's high school graduation. So the hospital staff brought the celebration to her.