Ever since being adopted as babies, twins Sinead and Orla have been the only family they've ever known. Orla's got the big house in Glasgow, the supportive husband and teenage daughter, Molly Rose, while Sinead's struggles have taken her to some very dark places. But all of that changes when Sinead receives a call. Their mother, Janey, is back in their lives. But she's far from what they expected and when the siblings discover their mum is the head of a dangerous gangland firm, their lives are turned upside down. In a firm like Janey's, you have to watch your back. And when someone from her past targets her new found family, Sinead, Orla and Molly Rose find themselves pawns in a dangerous game. But when Molly Rose is kidnapped, it's time for the sisters to show this family will do anything to protect one of their own.