The narrative unfolds wherein nefarious Black Prince harbors aspirations of union with Princess Elaine.
The intervention of the Stooges is pivotal, as they endeavor to advocate for Cedric's cause through the medium of music, specifically performing the sextet excerpted from Gaetano Donizetti's opera Lucia di Lammermoor.
Following a daring escape from confinement within the dungeon, where the King has sentenced them to face decapitation, Moe overhears a clandestine dialogue between the Black Prince and an accomplice.
This exchange reveals a treacherous plot to assassinate the King subsequent to his nuptials with Princess Elaine, with the ulterior motive of securing the throne for the Black Prince.
Through a display of diversionary antics, the trio engages in an armored dance choreographed to the strains of Stephen Foster's composition "Old Folks at Home", successfully disrupt the unfolding scheme, thereby affording Elaine the opportunity to liberate Cedric from captivity.