Who: Scott, Mushroom-Wallace, and YOU perhaps.
What: Somebody told Scott that you level up Digimon with the power of love, but Scott broke it canonically, so he's just gonna grind until Mushroomon does the thing. Also eventually he gets another partner.
Where: Shadow Isle. This is the worst idea.
When: Any time from the 9th to the 17th! Scott's gonna get that level-up if it takes him forever.

( How much exp does it take to level up a Digimon? )

Who: Fluttershy and BlackWarGreymon
What: After a week of being missing, Fluttershy is found by BlackWarGreymon
Where: Autumn Leaf Island
When: Jan. 9

( Won't you try? Just give it a chance )

Who: Arcee and Wheeljack
What: Arriving in Hospitown and regrouping
Where: Hospitown, just off the train
When: The..7th?

( down the road and back again )