If you looking for something epic then you must be aware of game of thrones. But to understand to story of the serial you ganna starts from starting. Recently game of thrones season 6 starts on hbo in every season 10 episode minimum so please I recommned you to watch this series for your real epic exprience in serial not in movie.
John snow is most famous chartor in this serial if you gonna watch then you find out the great characters in it.
Regards,
Akash