Episodes 1-4. short version is complete garbage. The writers do not care about the lore, they do not care about the fans, they DO NOT CARE ABOUT HALO! The only thing they have done good in this show is CGI.
Episode 5. Just skip to the last like 10 min of the episode because for the first time in the show something was actually Halo. It only took them 4 and half episodes to do something right.
Summary: the show is horrible and the writers should never be allowed to work anything related to a video game ever again. My 6 old daughter could write a better show about Halo then this hunk of pure garbage.