Atreus and Thyestes are competing for the throne of Argos. Thyestes seduced his brother’s wife and was driven out of Argos by his brother. When Thyestes returns he and his brother seem to be cool with each other. At least that’s what Thyestes thinks. Atreus looks to seek revenge for what his brother did. Atreus murdered the two sons of Thyestes, and had them chopped up and cooked to be served to their father at his honor banquet. When Thyestes finds out he has eaten his sons, he curses Atreus and all of his descendants. He then flees Argos with his last son, Aegisthus.
Helen is married to Menelaus, who is Atreus's son. Paris, the son of Troy, comes to seduce Helen and take her back to Troy with him. The Chieftains, who are