Tá áthas an domhain ar an gceathrar páistí atá ag an Rí Lear nuair a phósann sé arís. Tá Aoife, a leasmháthair nua, an-chineálta leo ar dtús. Ach ina croí istigh tá sí in éad leis na páistí agus baineann sí úsáid as a cuid draíochta rúnda chun mallacht a chur orthu. Déanann sí ealaí díobh. Caitheann siad blianta fada ar lochanna uaigneacha agus ar fharraigí reoite go dtí go bhfuil tréimhse na mallachta thart agus go bhfuil siad ina ndaoine daonna arís. Cé go bhfuil a gcairde uile imithe le fada an lá, tá a fhios ag an gceathrar go mbeidh suaimhneas i ndán dóibh ag deireadh thiar thall.
The four children of King Lir are happy when their father marries again. Aoife, their new stepmother is very kind to them. But in her heart she is jealous of the children and uses her secret magic powers to cast a spell on them, changing them from children into swans. They spend long years on lonely lakes and frozen seas, until one day the spell is broken and they are human again. Though everyone they loved is long gone, they know they are home at last.