When Emily and Palamon 1st see Emily they start to fights over her. They both fell in love.
Arcita and Palamon fight for Emily
Arcita gets let out of prison because one of his friends is friends with Theseus, so they made a deal that if he gets let out of prison he cannot return back to Athens or he would be sent to death.
Arcita Won the Battle, but dies
Arcita got love sick for Emily so he returns under fake name Philostates.
Palamon marries Emily
When Theseus finds out that Arcita has returned to Athens he was angry, but when he found out that they were both in love with Emily he told them to gather an army of men and fight against each other, and the winner will get to be with Emily.
Arcita won the battle, but fell of his horse and died. Palamon was sad because even though they were fighting he was still his cousin.