Mailer's internal struggle and manipulation by the Master within Stangmoor Prison.

In the escalating chaos of the prison riot, Mailer seizes control by violently forcing Jo Grant and Doctor Summers up the stairs at gunpoint, ignoring Summers’ protests and Vosper’s warnings …

In the chaotic cell block, Mailer taunts Jo while Vosper announces the Governor’s arrival, signaling an impending shift in power dynamics. As Mailer orders Barnham removed—distracted by the inmate’s presence—Jo …

In a tense prison cell confrontation, the Master—disguised as Professor Keller—physically overpowers Mailer to assert dominance, revealing a meticulously planned escape and riot scheme. He arms Mailer with weapons and …