Underdog 5 years old

Boris "Kos" Kosinski (Eryk Lubos) is a top MMA fighter. In the biggest battle of his life with his greatest rival, Denim Takaev (Mamed Khalidov), he makes a mistake that destroys his entire career. He loses everything. This failure brings him through a series of ups and downs, but it also pushes him to undertake a titanic effort to fight and win back respect and love

Credits

Underdog Cast

Name	Character
Eryk Lubos He was 44, now 50 years old	as Borys "Kosa" Kosiński
Krzysztof Kiersznowski He was 68, now 73 years old	as Cieślak
Janusz Chabior He was 55, now 61 years old	as Trener "Kosy"

Underdog Crew

Name	Department