DLC adds the Elder Scrolls planet. You travel there to pick up some lost artifact part and have to fight your way through dragons and vampires and shit. It’s so easy that you decide to build an outpost and retire there.
Elder Scrolls 6 starts off with an alien invader (Starfield you) stealing some ancient power which keeps evil at bay or whatever. You gain allies from the factions if you want and perform a heist from the evil alien thing. Fuck you, buy the game.