Barney Ross (Sylvester Stallone) and his elite team of mercenaries are back for what might be their final and most dangerous mission yet. A mysterious, technologically advanced terrorist syndicate known as “The Iron Covenant” has emerged from the shadows, seizing control of a decommissioned but still lethal orbital weapons platform.

Led by a ruthless former warlord who has modernized warfare, they threaten to rain kinetic strikes down on global capitals unless their impossible demands are met. The world’s intelligence agencies are paralyzed, and standard military options are off the table due to the political fallout. The job falls to the Expendables, but Ross realizes their old-school methods aren’t enough against this new high-tech threat. They need an equalizer.

Enter Santos (Cristiano Ronaldo), a legendary, off-the-grid special operative whose speed, precision, and battlefield intuition are unrivaled. Reluctant to join any team, Santos is convinced by Lee Christmas (Jason Statham) when the stakes become personal. The expanded squad must infiltrate a heavily fortified island fortress in the South China Sea, guarded by an army of mercenaries, automated defense systems, and attack helicopters. As the clock ticks down to the first strike, the team faces overwhelming odds in a relentless symphony of destruction. They must fight their way through a war zone to secure the control codes, proving once again that when the world is on the brink, old dogs and new blood can still kick the most ass.