Just when fans thought they had seen the last of a beloved firefighter, Chicago Fire is pulling off one of its most jaw-dropping returns yet. The Season 14 fall finale will reportedly bring back a character who left under heartbreaking circumstances — and their reappearance won’t be quiet.

Sources close to production hint that the returning firefighter will show up during a high-rise rescue that nearly claims the lives of two Squad 3 members. The sequence is said to be one of the most technically challenging shoots in the show’s history, involving practical flames, aerial stunts, and a surprise moment that had the crew “cheering behind the cameras.”

Fans on social media are already in overdrive trying to guess who it might be — some believe it’s Matt Casey (Jesse Spencer), while others suspect it could be a shocking cameo from someone presumed gone for good.

Whatever the truth, the return promises to be an emotional gut-punch wrapped in adrenaline-pumping action — just the way Chicago Fire likes to end a year.