Currently not on the island, the Aliens are the main threat to The Haven. Grimbledoop is the main target, it seems, due to Operation: Detonation's success.
It destroyed one of their main motherships - they still have plenty remaining.
The Aliens have sent a message to Grimbledoop, stating, "Grimbledoop. You did not destroy our army. Your land is next. Grimbleshire will be gone. We will bring ruin."
They are arriving, and when they do? Only the worst will follow.
