Let's determine where the energy goes from the things you put into a freezer.
A freezer works by puming out heat from the refrigerated space back into the surrounding air.
When you put things into a freezer, the gas will turn back to liquid. When the heat is removed from the items placed in the freezer, the heat energy is transferred by into the room surrounding.
Therefore, when we put things in the freezer, the freezer removes the energy and releases it into the air around it