When the flamboyant Henry Paget arrives in 1890s North Wales to claim his aristocratic inheritance, his theatrical flair and defiant eccentricities send shockwaves through the upper-class elite, much to the amusement of the local townspeople. Alongside his spirited cousin, Lily, and loyal butler, Gelert, Henry tries to carve out his own identity as the Fifth Marquess, navigating suffocating traditions, scheming relatives, and the long shadow cast by his estranged father.

After moving to a retirement community, loner Martha eventually befriends her fun-loving neighbor, Sheryl, and forms a cheerleading club for young-at-heart seniors, though they face roadblocks along the way.