Holly is turning into a werewolf
Evidenced by her recent hairiness and craving for raw, bloody steak.
General Leia Janeway is Oak.
Oak was turned into a kitten as punishment for not being there for Holly. The new mission is to spy on Holly and keep herself while eating lots of cheeseburgers.
- Obviously they had a voice actor pretend to be Oak for the phone call and Leia Janeway sent correct responses using Morse code paw taps and secret monitors that fed back to the voice actor pretending to be Oak.
There's an agent called (Chris) Pine who gets pelted with Christmas decorations every December
- The rest of Yule Team tries to decorate them.