Olive visits Christopher and his second wife in New York, but abruptly returns to Maine, where she gets some bad news about Henry, and ultimately befriends a lonely widower she meets while out for a walk.

Christopher suggests counseling to Olive after she and Henry have a scary episode following dinner with friends. Later, Christopher confronts his mother about how she treated him as a child.

A twentysomething Kevin returns to Maine, and Olive ropes him into staying over and attending Christopher's wedding-rehearsal dinner. At the ceremony, Olive clashes with the bride's mother and scares the flower girl

In the first of this four-part adaptation of Elizabeth Strout's Pulitzer Prize-winning novel spanning 25 years in a small Maine town, math teacher Olive Kitteridge helps Kevin, a smart but timid student whose mom is suffering from depression, a gesture that annoys her son, Christopher. Meanwhile, Henry goes on a hunting trip that ends in tragedy.