This is the entire playlist of episodes, starting at episode 1.
If you click play, once an episode ends it will advance to the next episode automatically,
so you have the ability to watch it all at once without having to do any extra clicking.
Essentially you get to watch it like a movie (approx 90 min so grab popcorn!) as opposed to individual episodes.

After clicking Play, click on the Icon left of the Clock Icon on player and you can watch it in HD.