"Prochnost" is the fifth episode of the eighth and final season, and 165th episode overall of the American television series Arrow based on the DC Comics character Green Arrow, revolving around billionaire playboy Oliver Queen as he returns to Starling City (later renamed Star City), after having been shipwrecked for five years, and becomes a bow-wielding, hooded vigilante who sets out to fight crime and corruption.
Stephen Amell stars as Oliver Queen, and is joined by principal cast members David Ramsey, Katherine McNamara, Ben Lewis, and Katie Cassidy.
[1] Oliver and Mia are preparing in the Team Arrow shelter when William informs then that Curtis has discovered a Russian general hoping to assemble a Pulse Wave Generator, something that is required for their Crisis-halting gadget.
Oliver makes brisk work of the warrior and as he's going to get the plans from the general, individuals from the Bratva appear and slaughter him.
As destiny would have it, both Oliver and Mia chill off and offer some kind of reparation, permitting the group to reunite to find the Bratva and the plans.
As the shipment shows up, Roy begins beating one of the equipped gatekeepers to death yet Diggle's ready to stop him.
[2] The title of the episode prochnost or Прочность is a Russian word that when translated into English means "strength".
[1] The episode guest stars former series regular Colton Haynes reprising his role as Roy Harper.
Additionally she found the returning cast members as a breath of fresh air, particularly Anatoly who for most of his last appearance was against Oliver instead of considering him a brother.
[4] Delia Harrington of Den of Geek rated the episode a 4/5 calling it a "nostalgia filled adventure".