Superman just saved the town from thieves. He was tired but then Joker started destroying the town. Superman tried to destroy Joker but he was too tired, so he retreated.
A scientist {his creator} came to his house and gave him unlimited energy. Meanwhile Joker was making a force field to stop laser eyes.
So when Superman used laser eyes on Joker it did not work.
He went back home and the scientist came back. He thought which superpower would destroy Joker .Then he finally got it; freeze hands. He installed freeze hands.