Underdog
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
![](https://image.tmdb.org/t/p/w500/u8pTk80e8tks1eAUtHS6yZzTHH0.jpg)
Cast
![](https://image.tmdb.org/t/p/h632/4UEPhFIG1eQRYk2x3UemyYAj4D.jpg)
Mariusz Drężek
Puszkin![](https://image.tmdb.org/t/p/h632/igQtMH9TOcNgXiCMK8JItmhrtxe.jpg)
Eryk Lubos
Borys "Kosa" Kosiński![](https://image.tmdb.org/t/p/h632/dCpfd9CGQi8sNlsNZgGRuYxDmSD.jpg)
Mamed Khalidov
Deni Takaev![](https://image.tmdb.org/t/p/h632/1n90R3rnTJTxcmSLaQTr4VZIsIa.jpg)
Emma Giegżno
Sonia![](https://image.tmdb.org/t/p/h632/3mjpcZ2xMRSexPvHRbgVrLOz0Ri.jpg)
Aleksandra Popławska
Nina![](https://image.tmdb.org/t/p/h632/2FqjGdNKEiAFpfn8GbZQVV9Vg9R.jpg)
Janusz Chabior
Trener "Kosy"![](https://image.tmdb.org/t/p/h632/bBGaNaQeFMq00zpcc2Tx1aOS13s.jpg)
Tomasz Włosok
Tomek![](https://image.tmdb.org/t/p/h632/lWi5NUqpHdRSBSlmGXjkTn67FrP.jpg)
Jarosław Boberek
Dziedzic![](https://image.tmdb.org/t/p/h632/u5k2Oz74sHLFODwHbkVg960q2YO.jpg)
Krzysztof Kiersznowski
Cieślak![](https://image.tmdb.org/t/p/h632/8Ii3TlSNx5SDIMsGXV9fpY2AC9R.jpg)
Bartosz Obuchowicz
Mądrala![](https://image.tmdb.org/t/p/h632/ymOtd9iYSHMGHPVCiTJek7VyCVJ.jpg)
Piotr Miazga
![](https://image.tmdb.org/t/p/h632/uOh9UqF3CD4FWl2qBXnSlS9g8VF.jpg)
Sławomir Mandes
![](https://image.tmdb.org/t/p/h632/sW0S81fxFurlFpLpKwPBGNfC51C.jpg)
Michał Mikołajczak
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