Original:
The larvae release a chemical that paralyzes the caterpillar, rendering it helpless as the larvae tear into its skin from the inside and break out. Amazingly enough the caterpillar survives these grievous wounds, though its plight is far from over. The larvae begin spinning up silken cocoons to prepare themselves for the journey into adulthood; though this is far from enough protection to ensure they will survive that long. This next part in the process was the one that baffled me the most. At some point a chemical was released that takes over the caterpillar’s brain, causing it to blindly protect the larvae that just maimed it. The caterpillar uses its own silk to add extra protection to the wasp larvae, and then spends the rest of its life defending them. It will fend off what predators it can, even defending the larvae from other parasitic wasps. It will play the role of guardian until it dies of starvation.

Revised:
The start of their escape is marked by the larvae releasing a chemical that paralyzes the caterpillar. It is rendered helpless as the larvae begin to tear open its skin from the inside and make their way to the outside. Amazingly enough the caterpillar is able to survive these grievous wounds (though its plight is far from over). The larvae begin spinning up silk cocoons to prepare themselves for the journey into adulthood; however this is not their only defense. At some point while residing under the caterpillar’s skin the wasp larvae released a chemical that takes over their host’s brain. This chemical causes the caterpillar to blindly protect the larvae that just maimed it. The caterpillar uses its own silk to add an extra layer of protection to the wasp larvae, than spends the rest of its life defending them. It will fend off any predators that it can, even protecting the larvae from other parasitic wasps. It will play the role of guardian until it dies of starvation.