The Phelans have owned Mossgrove for generations. The small, rural Irish farm has been the pride of them all until Ned's wife, Martha, arrives and begins to undermine generations of hard work and happiness. She resents the deep history of the place and sets about making it her own, shutting out what is left of Ned's family. She is particularly jealous of Ned's sister, Kate, a local nurse and doting aunt to Martha's children.
When Ned dies suddenly, Martha puts Mossgrove up for sale in hopes that it will be bought by the neighbouring Conways, who have long coveted the Phelan farm. What she does not realize are the lengths to which Kate and the hired hand Jack will go to keep the land in the family ...