I think that a short random encounter with Amanda was silly. However, Zula could have been a great back-up character in an Amanda story. If the intent was to create a cohesive story tying the two characters together, then it would have worked. Otherwise, this was another element of Defiance that failed. It could have literally developed into a story from Zula's point of view as a back-up character and how she relates to Amanda's bigger story. I just don't like shoehorning...