Malcolm (John Barrowman) is captured by Ra’s al Ghul (guest star Matt Nable) and taken to Nanda Parbat.
Mary’s (Adelaide Kane) mother (guest star Amy Brenneman) returns to advise Mary that her throne is in jeopardy.
After assigning tasks to each of her friends, Caroline (Candice Accola) attempts to deal with her current situation as reality begins to set in around her.
Clarke (Eliza Taylor) begins to question Lexa’s (guest star Alycia Debnam Carey) leadership decisions.
Malcolm (John Barrowman) puts Oliver (Stephen Amell) and Thea (Willa Holland) in a dangerous situation that lands them on Lian Yu with Oliver’s former enemy, Deathstroke (guest star Manu Bennett).
After the nuclear explosion separates Ronnie (guest star Robbie Amell) and Dr. Stein (guest star Victor Garber), Barry (Grant Gustin) and the team believe both men are safe.
As Mary (Adelaide Kane) and Francis (Toby Regbo) investigate who was behind the poisoning of King Henry (Alan Van Sprang), they unearth secrets of the past which force Mary to confront her feelings for Condé (Sean Teale) as she attempts to move forward.
It’s Jeremy’s (Steven R. McQueen) last day in Mystic Falls and Elena (Nina Dobrev) puts on a brave face as they reminisce about their past.
Oliver (Stephen Amell) is thrown by the changes within Team Arrow.
ghost starts killing people through various electronic devices.