The RP is set in an alternate, medieval universe. The plot is strictly driven by me (the GM). Two or three other characters will also be GMs, and I will communicate with them as to the main plot points. (probably the leader figures). Here is an extreme simplification of the plot:
The two greatest peoples in the known world have been at war for ages; the Kingdom of Roen, and the Kingdom of Croia.
The Roenians are defended by an army, which is led by a small group of warriors known as the Roenian Guard. These few men are brave and daring, continually risking their lives for the safety of their kingdom.
The Croians, however, are a nameless, faceless force intent on capturing and destroying Roan, the only thing that is preventing them from conquering every village in sight.
The attacks are getting fiercer and stronger with no end in sight, and the Roenians are growing weary.
Roen lore speaks of a warrior, Cameron the Great, who long ago saved Roan from the Croians once before but then disappeared, and hasn't been seen since..
As the plot develops, a traitor is revealed, a member of the Guard is murdered and the remaining Guard members are banished for disobeying the King's explicit orders. Discouraged, the only thing left for them to do is search for Cameron the Great.
The story will include: adventure, action, fighting, fleeing, robbing, burning, mugging, love, trust, a traitor, battles, missions, death, disobedience, secret agent ninja infiltration missions, capture, escape etc... you name it. Again, the plot will be entirely driven by me, and there will be an ending. I will PM and instruct participants on their role in the story (e.g. the plot twists they will be involved in).