Scrat ended up in another time that was not his. He could see a human male lying down. He had a long, white beard and appeared dead. A spark emitted from the time machine. A light surrounded the dead man. When it died down, it revealed two identical men, one dead and one alive.
"Ho, ho, ho. I feel jolly and alive! It's almost Christmas! I should figure out what presents I should give to people."
Scrat pressed random buttons on the time machine.
"What's that you got there?"
The old man touched the time machine as it transported him and Scrat to another time. It seemed to be the Ice Age. Scrat looked up and saw a man in a flying sled. He looked just like the man who came with him. He could see himself in the sack on the back of the sled. He did not want to live in a time where there were two of him. He pressed more buttons. The time machine started flashing. It appeared unstable. Scrat threw it into the ocean. He was relieved briefly until he felt the land moving. The time machine was pulling all the continents back together, a while after Scrat had caused a continental drift while pursuing an acorn.
The continents squeezed the time machine. It exploded, sending Santa Claus back to a time before the birth of Scrat and anyone else he has met. The magic of the time machine made Santa Claus immortal, and he would introduce Christmas to animals long before the savior was even born.
Scrat, meanwhile, was sent back to a time after the event that left him frozen. The air felt a bit warmer than when he had left. He walked happily with his acorn until he slipped on the ice. The acorn fell out of his hands and slid. Scrat, once again, chased after the acorn. It mattered to him more than the possibility of global warming, which other animals would soon worry about.