Can I save series from Netflix offline on my smartphone?

hey guys! I was wondering if it is possible to save some series from my Netflix account on my smartphone and watch them offline? I heard something about Netflix releasing an offline service but only by the end of the year (??) … So maybe someone can help me with this question? I already tried streaming but the internet connenction on the road is like always down, doesn’t make fun with the stream buffering every 2 seconds -.- Thanks!