The fourth and final season of "The Righteous Gemstones" has finally arrived on HBO. With the final season comes new responsibility for the Gemstone kids. They finally have what they want – control of the family megachurch - but leadership turns out to be a lot more difficult than any of them expected.

The season 4 premiere of The Righteous Gemstones is set in 1862 and stars Bradley Cooper. Here is how it happened & when the regular cast will return.

Bradley Cooper had a surprise guest starring role in the Season 4 premiere of "The Righteous Gemstones" on Sunday, setting the tone for the final season of HBO's hit comedy.