Thread:UltimateTitan6/@comment-6028837-20161224170747/@comment-16581186-20161224172825

lol I have no idea. It doesn't seem like an explanation was given for it in this episode either, but then again, my Korean is a little fuzzy so I could be wrong. There's a possibility we'll hear an explanation in the english dub.

The only plausible explanation I can think of is Alopex was hired by someone to kill him. Because last Tiger Claw mentioned the event that he lost his tale, he said it was a 'rival bounty hunter and Tiger Claw and Alopex were friends and working together until Alopex suddenly turned on him. So maybe the actual rival bounty hunter enlisted her help. But that would kind of make her look like the bad guy in that situation, and the turtles helping a bad guy is quite odd. That's just my hunch but it seems unlikely.