Another app that wants you to do their work for them, I couldn't do anything, except going back and forth without any success. I don't recommend this app.
Developer reply
Thank you so much for your feedback! We rebuilt Torrent Stream from the ground up in version 2.0: the issues you reported are fixed and the features you asked for are in. You can now watch while it downloads, play series in order, and pick subtitles and audio tracks. We'd love for you to update and give it another try.