Arrow -- "Legacy" -- Image AR501a_0035b --- Pictured: Prometheus -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501a_0056b --- Pictured: Prometheus -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501a_0060b --- Pictured: Prometheus -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501c_0003b --- Pictured (L-R): Willa Holland as Speedy and Stephen Amell as Oliver Queen -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501c_0007b --- Pictured: Stephen Amell as Oliver Queen -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501c_0034b --- Pictured (L-R): Chad Coleman as Tobias Church and Stephen Amell as Oliver Queen -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501c_0155b --- Pictured: Stephen Amell as Green Arrow -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501c_0161b --- Pictured: Stephen Amell as Green Arrow -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501c_0026b --- Pictured (L-R): Mike Dopud as Viktor and Stephen Amell as Oliver Queen -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501d_0204b --- Pictured (L-R): Stephen Amell as Oliver Queen and David Nykl as Anatoly Knyazev -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501d_0205b --- Pictured (L-R): Stephen Amell as Oliver Queen and David Nykl as Anatoly Knyazev -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.

Arrow -- "Legacy" -- Image AR501d_0269b --- Pictured: David Nykl as Anatoly Knyazev -- Photo: Bettina Strauss/The CW -- © 2016 The CW Network, LLC. All Rights Reserved.