Polly's fight for autonomy against the Colony's mind control and reliance on herself.

The Doctor enters Polly’s cubicle while she sleeps, discovering a hidden wire embedded in the wall—a device linked to the Macra’s mind-control system. He deliberately shorts it out, causing a …

Ben, still under the colony’s mind control, pursues Polly while dismissing her warnings about a lurking Macra. When a giant claw seizes Polly, Ben’s programmed denial collapses—his repeated insistence that …