Like any new endeavor, cooperation is required. Have you ever worked on a project with a group of classmates? I bet you have had some that work hard, some that work a little, and some that do nothing. That was happening in Jamestown. Under the extreme conditions, this caused a lot of strife. Put yourself in their position and imagine life in an untamed world.
Captain John Smith took control of the colony. He made a rule, if you don't work, you don't eat. This helped create a more fair society. It is helpful when looking at history, to remember that human nature contributes to any situation. Try to identify a situation in your life that gives you some understanding of how the settlers felt. Through this lense, you will have a better understanding of history.