this story drags in the middle, but is kind of fun in a slightly shit way
i love how they tried to make susan ~*alien*~ and ~*mysterious*~ but just made her really autistic
the first episode is pretty good, although i do think there are some good moments of tension in the rest
hartnell is clearly having a lot of fun in the scene where the tribe drives kal out
and watching it after animating marco polo, the fight scene at the end of this story is quite similar to that one (shot on film, two characters fighting with cutaways to closeups of them and the other characters watching)
and it's the same director, so that's probably not a coincidence
this story has some interesting things to say about democracy and teamwork, but it does sometimes get lost in the cavemen arguing