The Llewelyn family's livelihood largely depends on the ferry, run by Siona Llewelyn, the kindly yet rugged head of the family. The family is large but close knit, held together by their mother Emily - a hard-working woman made old before her time having borne seven sons, and now with child once again. As the boys grow into young men, tensions flare in the family unit, made worse by a web of rivalries and ambitions. When a death shocks the family to its core, it will take the intervention of a special person to remind them of what they have lost.