That link keeps running me around to 2-3 other websites, wanting me to sign-up for new accounts... what’s up with all that?
Click on episode one (for example)
right click and “open in new window” version 3 (any “sponsor” links are fake)
click on “continue as free user”
click on the white square where it say ‘click to play’
After a while you figure out the tricks and don’t even think about them.
You don’t need to sign up for, register, download or install anything.
I assume you have a video player with the needed codecs, if not I recommend VLC.