Four siblings return home to scatter their mother's ashes and read her will, not realising that this family reunion will end in murder.

The family discover who their mother has left the family farm to; Rhys is haunted by memories at the lake where his father drowned five years ago.

Nia and Michael's affair intensifies; Rhys goes missing as Joy goes into labour; Sara realises that Gareth has a secret.

Michael turns the tables on Nia; baby Cai goes missing, sending Rhys into a destructive spin that ends in him giving the family an ultimatum.