Season 1

Duncan Kerr returns, to Dundee for his brother Sammy's wedding. At the stag night there a number of known villains. Sammy later found dead. Lord Muircross is told that Sammy was holding their illicit money. Duncan wants an investigation.

McMurdo can't track down Sarah Timpson. Kerr and Caroline bring floppy discs containing Sammy laundered money and his contacts. Anderson starts a a panic when he has McMurdo killed. Niki admits Carr she met Sammy on the night he died.

Councillor Deans body is found with his tongue cut out. Finetti's toxic waste is poured into Lord Muircross quarry and pollutes his land. Grigory recognises Sammy as the man who shot two people. Anderson looks revenge for wife Niki's death.