Complex sentence: Uri's son Savan is the best hunter of their tribe and successor of his father, while Kaleb is the best tracker and together with his sister Miru (Eleanor Tomlinson), they are the only literate survivors.
Split into simpler sentences: Uri's son Savan is the best hunter of their tribe and successor of his father, while Kaleb is the best tracker. Together with his sister Miru (Eleanor Tomlinson), they are the only literate survivors.