Collects X-Force (2019) #39-50. X-Force vs. the Beast in the epic climax of Benjamin Percy's acclaimed run! Colossus leads X-Force into the next era - and perhaps to its downfall! No one on the team is prepared for a mission that just might fracture their trust and teamwork for all time. And, at last, the brotherly battle brewing for the past four years boils over: It's time for Piotr Rasputin vs. Mikhail Rasputin! Rocked by devastating revelations, the squad must regroup at a remote new base. But if the harsh arctic environment doesn't do them in, Orchis just might! Then, at long last, X-Force take their fight straight to Henry McCoy - and he will answer for his crimes! In a last desperate attempt to take down the Beast, X-Force will witness the return of…the Beast?! Wonder Man guest-stars as the team confronts Hank with their secret weapon! Brace yourself for the final reckoning!