The rebel criminal committed something terrible that gave them their fate to be stranded on the planet. The other survivors believe that he is the one to blame since he's the only person from an anti-government group that has survived amongst them. The survivors are aware of the "anti-government" group's agenda of committing violent acts to take control of the corrupted government.
edit: Humanity's fate is on an intergalactic spaceship with a population of 6 million people. They journey for 100's of years looking for a habitable planet. Over time, the government has become corrupt committing terrible acts, creating abusive laws as well as promising many things but failed to deliver. The citizens were becoming impatient that resulted in the creation of a rebel group who's agenda is to defeat the corrupt and give back the citizens a better future. The nation was divided to two, resulting many battles and skirmishes to take control of certain parts of the ship.
The government devised a plan to distribute explosives around the ship for their resolve to abandon everyone below a certain level upon finding a habitable planet. Their reason is to have control as well as not bring any people with diseases on the surface. There's more to it but that is the idea for now.
To get to the point; a huge war began between the government and the rebels. The explosives were triggered and everyone wasn't prepared for it. The emergency pods were disabled from the government early on from their plan to leave the Lusitania in rubble after their success landing. A few survivors make it out, mostly people that were selected (authorities, politicians, their family members etc), and a rebel leader who made his last stand but was lucky enough to save himself.
So Humanity is on the verge of extinction. They are it. A group of 9-12 people which consists of authorities, politicians, and a few other high-class citizens.
What would the survivors do to the rebel? What are they thinking? What would the rebel do? He's the odd one out.
Would they all reason to get along for the survival of humanity?
And what if the rebel had 1 or 2 of his rebel allies within the group? Would the outcome be different than a rebel alone?
They are all in a state of shock. And they are very lucky to have survived the crash landing. They are on a mysterious planet like earth. They don't have any experience with nature.