Arrow -- "Nanda Parbat" -- Image AR315B_0073b -- Pictured: John Barrowman as Malcolm Merlyn -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0419b -- Pictured: Stephen Amell as Oliver Queen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0124b -- Pictured: Matt Nable as Ra's al Ghul -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0442b -- Pictured: David Ramsey as John Diggle -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0129b -- Pictured (L-R): Matt Nable as Ra's al Ghul and Stephen Amell as Oliver Queen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0186b -- Pictured: Brandon Routh as Ray Palmer / The Atom -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315A_0018b -- Pictured (L-R): Marc Singer as General Shrieve and Stephen Amell as Oliver Queen -- Photo: Diyah Pera/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0150b -- Pictured: Stephen Amell as Oliver Queen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0222b -- Pictured: Brandon Routh as Ray Palmer / The Atom -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315A_0041b -- Pictured: Marc Singer as General Shrieve -- Photo: Diyah Pera/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0208b -- Pictured (L-R): Matt Nable as Ra's al Ghul and Stephen Amell as Oliver Queen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0265b -- Pictured: Brandon Routh as Ray Palmer -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315A_0140b -- Pictured: Willa Holland as Thea Queen -- Photo: Diyah Pera/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0212b -- Pictured (L-R): Stephen Amell as Oliver Queen and David Ramsey as John Diggle -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0285b -- Pictured: Brandon Routh as Ray Palmer -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315A_0176b -- Pictured: Katie Cassidy as Laurel Lance -- Photo: Diyah Pera/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0265b -- Pictured (L-R): David Ramsey as John Diggle, Karl Yune as Maseo, and Stephen Amell as Oliver Queen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315A_0252b -- Pictured: Willa Holland as Thea Queen -- Photo: Diyah Pera/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0308b -- Pictured (L-R): Stephen Amell as Oliver Queen, John Barrowman as Malcolm Merlyn, and David Ramsey as John Diggle -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0055b -- Pictured: John Barrowman as Malcolm Merlyn -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0381bc -- Pictured: Stephen Amell as Oliver Queen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0058b -- Pictured (L-R): Matt Nable as Ra's al Ghul and John Barrowman as Malcolm Merlyn -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0045b -- Pictured (L-R): Matt Nable as Ra's al Ghul and John Barrowman as Malcolm Merlyn -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0377b -- Pictured: Matt Nable as Ra's al Ghul -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315B_0354b -- Pictured (L-R): David Ramsey as John Diggle and Stephen Amell as Oliver Queen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0032b-- Pictured: Emily Bett Rickards as Felicity Smoak -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0045b-- Pictured: Brandon Routh as Ray Palmer -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0124b -- Pictured (L-R): Brandon Routh as Ray Palmer and Emily Bett Rickards as Felicity Smoak -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Nanda Parbat" -- Image AR315C_0108b -- Pictured (L-R): Emily Bett Rickards as Felicity Smoak and Brandon Routh as Ray Palmer -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- Image AR315C_ATOM_0001 -- Pictured: Brandon Routh as Ray Palmer / The Atom -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All Rights Reserved