First to say, this game is long so don't expect to beat it in 1 or 2 days. If you have seen the original Warriors movie, then you will be completly familiar with some of the characters, settings and sayings.
Taking place 3 monthes earlier before the movies backround, you get to play as each
main Warrior, and complete basic missions such as tagging enemy gangs turf(as well as tagging their "burners") , destroying gang hideouts, taking out gang leaders and just basicly getting the Warriors gang known.
After the basic missions, comes the movie's setting, which is a little short. The game follows the movies story very well, with a few slight changes in order for it to be beaten without it taking a full month.
If you don't want to do the missions, there always side missions in which you can defend your territory from enemy gang raids, track and waste people that messes with The warriors and it's allys, tagging over enemy gangs' grafitti, destroy and steal...