I had a situation where there was a single Enemy in the Combat Zone as I got to the Strike Phase. It struck and I drew Explosion, causing me to also draw a Ship Strike, Limping, which then added an Episode card to the Verse, pushing another card to the Combat Zone which also happened to be another Enemy.
I then drew a second Crew Strike for the new enemy that had appeared. This is correct, right? The rule on p12 says that you handle them one at a time from right to left, and you add them from the left, so I assume new ones that show up will start attacking you immediately, even though they weren't in the Combat Zone at the start of the Strike Phase.
This is correct.