King Pelias sends Jason away on what he believes is an impossible task, hoping that his quest will kill him. The voyage of the Argo is truly a unique journey. Rarely does such a number of great heroes show up at the same time! y.
Medea is a fascinating, yet terrifying, character. She is the granddaughter of the Titan, Helios, and a servant of Hecate, the goddess of sorcery. She is also a talented user of magic herself.
After being shot with Eros' arrow, she gives up her city's treasure, leaves home, murders her brother, stares down the bronze giant Talos, and convinces Pelias' daughters that cutting up and boiling one's father is a good idea.
Such is the power of love. Medea makes great sacrifices for Jason's sake, doing all of these amazing and horrifying things, and he ends up leaving her for a political marriage. Shouldn't Jason have known NOT to cross her?