DC COMICS' VILLAIN DEATHSTROKE APPEARS ON THE ISLAND WITH OLIVER — After Detective Lance arrests Oliver for murder, Oliver tells Moira the only lawyer he'll allow to represent him is Laurel. Laurel takes the case which puts her at odds with her father. Oliver offers to take a polygraph in front Detective Lance but things get tense when Lance asks him if anyone else was on the island with him. Oliver flashes back to when he got his first scar, courtesy of Deathstroke (guest star Jeffrey Robinson). Colin Donnell, David Ramsey and Willa Holland also star. Michael Shultz directed the episode written by Wendy Mericle & Ben Sokolowski.