good series, ,my friend encouraged me to watch, so i did, finished season 5 mid season finale
there are plot holes but it is still a good series
i think walt's cancer is back, from the foreshadowing shown in the mid season finale, walt being on the run can be attributed to the intl connections and his new relationship with todd and his family going sour after hanging up the boots, i doubt hank will turn him in or pursue him, hank has shown his loyalty to family, especially with that kleptomaniac wife of his, i doubt he will risk destroying their family, also the fact that its his brother in law and he didn't know the entire time would ruin his career as a dea... so that gun scene at the beginning is alluding to walt protecting himself from his enemies.
plus i get the feeling skylar will be killed