In a residential street in Edinburgh, brothers Max and Jake run down an old man while Jake is driving them back from a wedding - stoned and uninsured. They carry on with their lives, hoping Walter's death will be passed off as natural causes, but the brothers end up being pulled further into Walter's world.

Max does his best to take control, while Jake finds himself falling in love with Angie, the dead man's niece.

Jake and Angie's blossoming relationship creates difficulties between the brothers, leading Max to take decisive action against his sibling.

When brothers Max and Jake unwittingly run over and kill an old man, their attempts to cover it up trigger consequences neither of them could ever have imagined.

In an Edinburgh cellar, two gunshots ring out. Across town, Max McCall is released from prison. These two events gradually converge as Max tries to rebuild his life.

Max and Kenny find a local Minister more of an obstacle than they thought. Pressure builds for Erin, while Teddy is seeking answers.

Max and Erin’s relationship grows ever more complicated, as the pressure on Max from his police handler Jackie steadily increases, and he has a surprising meeting.

Max and Jake pick up arguments old and new, while the Lynch family face their darkest secret. Max offers Erin a way out but is running out of time to find one for himself.