Maybe thats why there was more than one person in the scout groups. If Victor was alone he could run away, but with Fernando there he has to stay because Fernando is apparently loyal to the colony, Victor not so much.
Once Fernando was dead and Victor wanted to escape, why didn't he enlist the help of Michael, Pegs and Kelly to help him escape. If he truly, in his heart of hearts, wanted to escape he was given the perfect opportunity and he didn't take it.
Bookmarks