A: Officially, no. Fan-made subtitles exist for some episodes. Check YouTube community captions.
The series is set in the late 19th and early 20th century, following the lives, loves, and struggles of characters in a changing Serbian society. Here are all 24 episodes of Nepobedivo srce : nepobedivo srce sve epizode
A: Yes, via YouTube (Prva TV) or VPN set to Serbia for Prva TV website. A: Officially, no