When Moire O'Sullivan's husband, Pete, took his own life, she was left with a stark choice: to weep forever over the glass of milk that had just spilt or get on with the quarter that was still remaining.

As Moire charts the first harrowing year after Pete's death - the  shock, the loneliness and the difficulties of single parenting two young children - she also experiences glimpses of hope and acceptance as she trains to become a mountain leader. The people she meets through the mountains, as well as the peace and wild beauty of the Mournes, help Moire discover her inner strength and prove she is not alone in her struggles.

A year on from Pete's death, Moire takes on a circuit of the Mournes: a winter run that reflects the dark struggles her husband went through, but which also shows the power of nature, and the healing support of community.