An AU where on Takodana when Rey gets kidnapped by Kylo...Finn sees Hux through the chaos. Finn knows the ins and outs of StarKiller and knows how close Kylo and Hux are. When he tells Han this, Han realizes that the only way to get Rey back safely is to grab Hux and use him as a Bargining chip even if it hurts his son. So he and Chewbacca kidnap Hux and bring him back to resistance base and a message is sent that if Rey isn't returned unharmed Hux will die.

++ No one dies during the Hostage exchange [Kylo can attempt to kill to Han out of rage though if you would like]
+++ Rey maybe is in good shape but Hux is maybe roughed up Bound and Blindfolded on his knees.
++++ Leia is also involved in the exchange and tries to up the ante by letting Hux live if Kylo returns to the base with them.