In this case, Primal takes place at the dawn of human history with you playing the member of a hunter-gather clan. You fight rival clans and hunt sabre-toothed tigers and woolly mammoths. There are no guns, vehicles, radio towers or, apparently, conversations in modern English, all of which the previous games in the series relied on. Instead the game will double down on the crafting, hunting, stealth, melee combat and use of bows that were side-features in Far Cry 3 and Far Cry 4.
It's definitely a bold and unusual move for a huge, AAA franchise, and a welcome one for a FPS series that used to defy expectations and be more experimental before it became so massively successful.
The game will be released in February 2016 on console, followed by the PC version in March.