Tough to pull off a rescue fighting a small army with an infant strapped to your back. And it's not like they can just leave Judith with Lizzie while they sneak in. But for now that does seem to be the most plausible(?) plot line. Either that or Beth could end up being the new High Priestess of the cult and set everyone free. Either way IMHO the few really good episodes couldn't make up for the fact that this was the weakest season so far.
Lizzie is dead. Her sister killed her.