Guys you're being introduced to well past the halfway point of their respective stories. Luke's a Jedi? Who's Luke? What's a Jedi? The blind guy loves that bounty hunter? Or does he love that ape creature in his cell? Why does he owe Luke one? Is he in love with him too? Who's whose father? What's that ghost have to do with anything, & why is Luke so annoyed at him? Luke's sister was Jabba's Playmate of the Month? Why does this Luke guy have a mechanical hand, & what's it got to do with him cutting off the confused bad guy's hand? WHO CARES? Regardless of how much you can logically piece together, ROTJ doesn't stand on its own at all. If you haven't seen ANH & ESB, it's the resolution of something you don't know about, & therefore, can't care about.