Perez issues a warrant for Connor's arrest and looks for the motive behind his bomb-making. Sandy tries to find out what business William Rodgers had in Shetland.
When a young archaeologist discovers a set of human remains, the Shetland community is intrigued to know if it's an ancient find or a contemporary mystery. And when an elderly woman is shot on her land in a tragic accident, Perez and his team find themselves at the centre of two feuding families whose envy, greed and bitterness has divided the surrounding community.
Shetland - Series 7, Episode 4 Synopsis and Schedule