When the tyrant's robots attack, Krishma is accidentally killed by them, which releases Focas from his mind control. After Focas urging Mortimer to don a protective suit previously worn by Krishma, the two manage to secure the retreat of their men into the underground.
During the tyrant's robot attack, Krishma is inadvertently killed, freeing Focas from his mind control. Following Focas' directive for Mortimer to wear a protective suit once used by Krishma, they successfully lead their troops to safety in the underground.