Scorch Scale:
"I presume, that you made a deal with this criminal for his tech? Sweeten his time here?" Scorch Scale said as he approached the cell of the tech villain.
Scorch Scale knew things were wrong with them using the forcefield, his intuition told him something was wrong.
"You... presume correctly," said the man. "Mister, er, Cogster, has bargained to knock a number of years off of his sentence... he might be out in as little as ten years. In return, he's used his extraordinary talents with technology to make a prison that not even fire-breathers or power-borrowers nor electrical thugs can escape from... But we've been extremely careful to supervise things so as to not allow
him to escape, either, nor to make it so that anyone
else can escape... but you can see why we thought it might be best to have you people in to double-check the system..."
"The esteemed gentleman is correct," says The Cogster. "They have been extremely careful. I, nor anyone else within these walls, should not, by my calculations, be able to escape once trapped here, as indeed we now are." The Cogster sighs. "My only consolation, Mr. Scale, is that the same applies to you and your colleagues as well."
The man in the black suit nods.
Then he stops nodding, and looks at The Cogster. "...Wait, how did you mean that last part exactly...?"
The Cogster waves one hand airily in a gesture of self-evidence. "If I'm not getting out, neither are you. I've been able to secretly program the building's defenses for that much, at least. You're in trouble."
A wall at the far end of the hallway slides open, and three very age-of-steam-aesthetic robots emerge, arms raised to grab and/or destroy...
...And one smaller robot, just like the others, but less than two feet in height.
"...And your little dog, too," adds The Cogster.