After the warden realizes that Barry is missing, the prison goes into lockdown as guards run towards the secured housing unit.

Randomly, a prisoner shouts out to them as they run past. Something like "Go get em boys!" I'm not sure, doing it from memory.

Just a guess but wouldn't it be cool if that was Barry in disguise? They are both wearing the powdery blue uniforms but I suppose all of the prisoners have matching clothes.

I was just wondering if it was possible that Barry, in an attempt to hide in plain sight, somehow found something to use as a makeshift wig/beard - hopped into an open cage - pretended to be a supportive prisoner as the guards ran past - then continued on somehow?

Could be wrong and just a random guess but wanted to see what you guys thought, seemed random for them to show that.