Arrow: Divided

"Irreconcilable Differences" is the ninth episode of season six of the superhero action series Arrow, and the 120th episode of the series overall. It was directed by Joel Novoa with a script written by Ben Sokolowski and Spiro Skentzos. It first aired on the CW Network on Thursday, January 18th, 2018 at 9:00 pm. In this episode, Slade Wilson pays a visit to Oliver Queen to help him liberate his son from a foreign prison. Meanwhile, Dinah Drake gets the drop on the new Vigilante and learns his secret identity - and it is someone from her own past. F.B.I. agent Samanda Watson continues to cause headaches for the members of Team Arrow.