Here is the official synopsis for 4×14 – Code of Silence, that will air February 17th (my bday)
SECRETS AND LIES — Oliver (Stephen Amell) and team uncover HIVE’s plan to take out Team Arrow once and for all. With HIVE’s next attack imminent, Lance (Paul Blackthorne) wonders if Donna (guest star Charlotte Ross) is safer without him in her life. Meanwhile, with the wedding fast approaching, Oliver begins to feel guilty that he hasn’t told Felicity (Emily Bett Rickards) about his son. James Bamford directed the episode written by Wendy Mericle & Oscar Balderrama (#414).