However, you can use prepositions to describe *how* or *where* something is plunged. Here are some examples:
* Plunged into: This implies movement into a place or situation.
* *The city was plunged into darkness after the power outage.*
* Plunged through: This implies movement through something.
* *The hikers plunged through the dense forest.*
* Plunged down: This implies movement downwards.
* *The airplane plunged down towards the ground.*
Essentially, the preposition you use will depend on the context of the sentence.