Zombie Apocalypse.

Unfortunately, the house was occupied by survivors like yourself. They return fire and kill a whole chunk of your crew. With all of your wit and cunning, you manage to fire back and injure two, while the remaining people in your team finish them off.

You are left with a very small and ill-equipped group of survivors. They are hungry and weak and hesitant to tag along with you, but you convince them to persevere and continue fighting. They reluctantly agree to continue on with you, as long as you decide to make wiser decisions, they say.