Undisputed 4

Boyka: Undisputed is an American martial arts film directed by Todor Chapkanov and starring Scott Adkins. It is the continuation of the film One will become invincible 3 (released directly in video, in 2010). The profitability of the latter was greatly affected by illegal downloads, which delayed the production of Boyka: Undisputed1. The film is screened at the Fantastic Fest (in) of Austin (Texas) on September 22, 2016. The release in France is scheduled for March 23, 2017.