Art critic Alastair Sooke spends four episodes with the artists who broke twentieth-century painting apart and rebuilt it: Andy Warhol, Henri Matisse, Pablo Picasso, and Salvador Dali. Each episode follows one artist through the works and decisions that made them famous, from Warhol's Factory and his flattening of celebrity into image, to Matisse's late cut-outs made when illness kept him from the easel, to Picasso's restless reinvention of his own style every few years, to Dali's theatrical self-mythologizing alongside the genuine technical control underneath it. Sooke visits galleries and studios, talks with curators and historians, and looks closely at individual canvases to explain why each artist's choices felt radical at the time and how they still shape how museums and the public think about modern art. The series treats each figure as a distinct problem rather than repeating a single template, so the Matisse episode and the Warhol episode end up asking very different questions about what makes a work of art matter.