Oliver Queen has suddenly been joined by his time-displaced adult children, and their first family outing will be one to remember as Oliver and Mia Smoak enter a brutal cage match in new official stills from Arrow.

The CW has released photos from the final season's fifth episode, titled "Prochnost" -- the Russian word for "endurance," showing William looking on as his family engages in hard-hitting brawls. Meanwhile, Diggle is seen approaching Roy Harper with his old Arsenal costume, with the two old friends reunited in the field.

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Arrow

Prochnost (Ep# 805)

DON'T LET YOUR PAST DEFINE YOU -- Upon learning the key to oppose The Monitor (guest star LaMonica Garrett), Oliver (Stephen Amell) and team return to Russia on a mission to gather the necessary materials. Diggle (David Ramsey) reunites with a figure from his past. Laura Belsey directed the episode written by Benjamin Raab & Deric A. Hughes (#805). Original airdate 11/19/2019.

Roy left Star City seasons ago after faking his own death, appearing sporadically to help the rest of Team Arrow. Judging by the photos, he has taken on the fake name Jason while working as an auto mechanic before being recruited by Diggle for one last adventure.

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Airing Tuesdays at 9 p.m. ET/PT on The CW, Arrow's final season stars Stephen Amell as Oliver Queen, David Ramsey as John Diggle, Rick Gonzalez as Wild Dog, Juliana Harkavy as Black Canary, Katie Cassidy as Black Siren, Katherine McNamara as Mia Smoak, Joseph David-Jones as Connor Hawke and Ben Lewis as William Clayton-Queen.