Pitch and Hans's plan
In pitch's lair, Pitch and Hans had to make a plan on destroying Arendelle but Pitch knew Jack was immortal but Hans did not so how, were they going to destroy a boy who can't die well let's say it would be difficult but Pitch knew the trick.
Out of nowhere Pitch had told Hans "He is more stronger than either of us, so we need to outsmart him, however, he is very smart" but Hans just said to Pitch "why don't we out strength him?" and Pitch nodded in agreement.
The thing with Pitch is that anything evil he has got just doesn't work on Jack as much because of the way Jack had beaten, him before however, Pitch had Hans this time and why not try a lightsaber duel with Jack, so Hans had been given a lightsaber to fight with and he had started training already getting stronger every time he had trained up.
Pitch told Hans that "If you want to kill Jack, you have to know his weaknesses and one of them is the Queen of Arendelle, Queen Elsa" and Hans replied "I threaten to kill Elsa; I could have a chance to kill Jack sweet plan Pitch".
Pitch had answered Hans "Thanks with this plan, nothing can go wrong" so pitch could only hope that Hans was worth the help after all but Hans did say to Pitch "You gave me a lightsaber so if he also has one let's see who is stronger me or him in a lightsaber duel".