For the record, here is the comic book backstory to this epic confrontation:
Centuries ago, there was an ancient power struggle between two sacred clans (lead by these two guys):
https://forums.d2jsp.org/user.php?i=9166https://forums.d2jsp.org/user.php?i=129730Spoiler alert:321 ultimately slays 123. We see this shit in the form of a flashback with whack CGI effects. Its super lame.
Then generations later, AJ is born, with the sole purpose of avenging his master 123. (Possible plot holes here)
AJ trains hard in some sort of akward training montage. Several episodes later, AJ slays 321 with his masterful crane-style technique.
The plot thickens when 321's discipel Avenged321 arrives in California...
Season 2 was cancelled by Netflix, so thats all we get