Mmmm, yeah, this chapiter feels kind of rushed, I understand what you mean when you say that you thought you limited the story by putting it within only one episod.
You manage to keep the tension between Throttle and Stoker though (kudos) and I just love Modo in this part!
The end is splendid too.
The first part seems to be kind of dislocated. Does it happen before or after Throttle and Stoker leaves the garage?