Khyber

S1 E7: Jack Turner is furious that his bid has been turned down in favour of the Chinese. Byzantium discover their client, which Keel knew, is Polyhedrus fronted by the Chinese. Polyhedrus built the dam but killing nearly 600 villagers that stood in their way using poison gas. Evidence is in soil samples that Jack Turner has and which Byzantium have been unable to locate for Polyhedrus. Sam discovers it is Polyhedrus that want her dead and the CEO is a director of Byzantium. Keel knows all this and tells Sam he knows what happened when she received treatment in an Istanbul hospital after being shot. Stephen Turner is being turned from Sam by his father.