Rhys returns to Llanemlyn after prison. As Caryl digs into a 1995 tragedy, secrets emerge amid the protest against a reservoir expansion.

Caryl uncovers secrets as Rhy's search brings him face-to-face with Eve.

Caryl faces a crisis of loyalty and truth, as new leads and Rhys’s revelations about the bombing stir hidden tensions.

Caryl digs deeper into the past, questioning key figures. Meanwhile, Mabli’s secret paternity test threatens to tear her family apart.

The community mourns while Mabli’s moving poem at the funeral inspires her and Hari to fight the reservoir expansion.

Caryl unravels the truth of Llŷr’s death, Rhys confronts his father Bryn, and Hari decides to leave Llanemlyn.