Dominic Purcell (Lincoln Burrows) laughs, flexing a fake arm tattoo. “Went, we’re actors. Not structural engineers.”

Wentworth pulls out the blueprint—now smeared with rain and mud—and smiles. “Actually,” he says, “I think we just wrote season two.”

One by one, they shimmy through the chute—Wentworth still calculating angles, Dominic shoving him forward, T-Bag singing “Jailhouse Rock,” and Wade Williams grumbling about union violations.