three years ago, you were captured with 12 other men onto this planet, to train and fight to the death.
your team, K, won the battle and returned to earth safely. M is now dead, forever.
just when your team was adapting back to normal life, you've been thrown an option.

fight again. against the elite team who was trained all their life.

victory would bring both K and M back to earth for good. defeat would mean both K and M would die forever.