I'll try my best to explain the situation I was in as best as I can. Here is what happened and let me know what the ruling should be.
I charged with Unit A to opposing Unit B. Unit B opted to flee and fled behind one of his own units. Now my charge roll was higher than his flee. Normally the fleeing unit would have been destroyed because it did not leave my charge range. Since Unit B fled behind one his own units does he get away or is that unit still crushed from my charge?