In Poland, the series is titled "Most nad Sundem" . You can watch it officially with Polish subtitles or lector on TVP VOD .
While the series is available on Prime Video, Polish versions (napisy/audio) vary by region. Some versions only include English subtitles. About the Series Bridge(2011)221 DostД™pne napisy
For those with their own video files, professional translations for this series are often handled by Polish subtitle groups like Grupa Hatak or available on major repositories such as OpenSubtitles . In Poland, the series is titled "Most nad Sundem"