When P.T. Barnum (Hugh Jackman) loses his office job, he has an idea. He gatheres unique and talented people in order to create a show like nothing that's ever been seen before. He creates the traveling Ringling Bros. and Barnum & Bailey Circus, a.k.a. "The Greatest Show on Earth." The dazzling spectacle and celebration of his vivid imagination intrigues audiences around the world.
Throughout his travels, Barnum was infatuated with singer Jenny Lind, known as the so-called Swedish Nightingale (Rebecca Ferguson).