Enid-Raye Adams

In the season four premiere, Oliver and Felicity must return home to help the team against attacks by "ghost" assassins led by Damien Darhk (NEAL McDONOUGH).

As the victims of a highly intelligent serial killer “Over There” stack up, the Fringe Division “Over Here” is asked to assist. As the two sides tangle and innocent people remain at risk, the suspect’s doppelganger “Over Here,” a professor who teaches Forensic Psychology, is brought into the fold and forces the team to consider the notion of sending civilians to the other side.

Oliver and the team uncover HIVE's plan to take out Team Arrow once and for all. With HIVE's next attack imminent, Lance wonders if Donna is safer without him in her life. Meanwhile, with the wedding fast approaching, Oliver begins to feel guilty that he hasn't told Felicity about his son.

Emma's been reading up on the rules of polyamory and apparently EJI is doing it all wrong; Gabe blows Emma and Izzy's mind by revealing a family secret they absolutely cannot repeat to Jack.

EJI drop the masks of indifference and finally say what's been bubbling up since Izzy made a run for the border six months ago.