The series lost all of its purpose after the first season, the two girls escaped the facility, went to the forest for refuge, develop a weird relationship one towards the other, more based on possession rather than friendship, until one of them is bored and sets up to go to look after her mother, and bam season 1 all over again!
Besides the main protagonist should be dead or at least hurt being shot at repeatedly from relatively short distances by military trained people, I get the idea behind generically enhanced human beings but there is a difference between superhuman abilities and bad script writing.