MALCOLM MERLYN RETURNS: Oliver (Stephen Amell) rallies his team as Slade’s (Manu Bennett) Soldiers attack The City. Felicity (Emily Bett Rickards) gets a call from S.T.A.R. Labs with game changing news and Thea (Willa Holland) comes face to face with her father Malcolm Merlyn (Guest Star John Barrowman). Nick Copus Directed The Episode Written by Jake Coburn & Ben Sokolowski.