After their mother's death, Richie Bravo returns from Italy to his childhood home in Austria, where he reunites with his brother. Together, they attend their mother's funeral and go their separate ways. One goes to Romania to start a new life, while the other pursues his old dream in Rimini. However, both brothers find themselves confronted by their past sooner or later.

The movie Sparta is a follow-up to Ulrich Seidl's previous film, Rimini. It revolves around the story of Ewald, the brother of Richie Bravo. Set in Romania, the movie delves into themes of drama, pedophilia, abuse, and fighting. It explores Ewald's journey in a nursing home and his involvement in wrestling and judo. The plot also touches upon sensitive topics like sexual harassment and nursing home care. With elements of mumblecore and gladiator-costume, Sparta takes viewers on an emotional rollercoaster.