Jason and the golden fleece

Jason was the rightful heir to the throne when his father died but his uncle stole it from him. Then in an attempt to win the throne Jason agrees to travel to get the golden fleece which he would then trade for his coveted position. When he gets there Jason is given a series of tests he must pass in order to get the fleece. He plows a field with bulls that breath fire and plants some dragon teeth. Then from the earth comes an army of men that he must face.So, he tricks them all into fighting themselves by throwing a rock into the middle of the army. Jason then drugs a fire breathing dragon guarding the fleece in order to take it. He then returns home with a golden fleece and a new lover to take his place as king.
My favorite story about revenge is Rocky IV. Basically the same as all the other Rocky movies but he is motivated by revenge which makes it somewhat more intense than the previous 3.