Lando betrays Han and the guys to Vader in Cloud City, but soon gets himself a back-bone and decides to free them. Han has been tortured to bring Luke to the planet (using his new Jedi location senses), and is frozen in carbonite before being handed over to the infamous bounty hunter Boba Fett as payment (who will take Han to Jabba the Hutt for a big reward).
Vader and Luke square-up and duel with their light-sabres for quite a long time, as the rest of his team escape in the Millennium Falcon.
At one point Vader thinks Luke is trapped inside the Carbonite machine, making his job easier, but Luke has a few Jedi tricks up his sleeve now including a flea-style super jump. "Impressive".
More fighting before Vader chops off Luke's hand and lightsabre. Luke tries to get away and does some teenage yelling, blaming Vader for the death of his dad until we hear ... "no, I am your father".
Luke screams in pain then jumps for it ... but is sucked into a garbage disposal tunnel of the space-city and survives, hanging from a TV antennae.
About to fall, he calls out for Leia who seems to have a little Jedi power of her own, and the Falcon picks him out. R2-D2 then saves the day by activating the hyperdrive and they get away from Vader again.
Luke is taken to a floating rebel hospital and patched up with a new bionic hand. Meanwhile the Dream Team hatch a new plan, starting with Lando and Chewie flying out in the Falcon to find their old buddy Han.