"Acrisius put Danae and the child in a wooden chest, which he cast into sea" Danae's father was scared that the son of Danae Persus was going to grow up and kill Acrisius.
King Polydectes "came up with a plan and persuaded young Perseus to fetch him the head of medusa the Gorgon, thus hoping to be rid of him for good as anyone who looked at her would turn into stone" the King is hoping to set Perseus on a suicide mission so he wont be in the way of the king and mom.
"Perseus then traveled to the Graeae since they are the only ones who know the location of the Gorgons. He steals their eye, making them blind, and keeps it until they give him the information he is looking for." Perseus takes their eyes as a threat until the Gorgons tells him the information he needs to locate Medusa.
"Guided by the reflection in his mirrored shield, he used his sword to cut off her head before she awoke." Perseus was able to fly over the guardians with his flying wings on his feet to get Medusa's head.
"Perseus passed near Joppa where he saw Andromeda, A beautiful princess chained to a rock"Perseus turned the monster into stone by showing Medusa's head." After Perseus's accomplishment against Medusa, he helps a princess on the way home from the guardians and Medusa.
"Perseus rescued his mother by going to Polydecte's palace and turning him and his men to stone with medusa's head. Perseus saves the day by accomplishing things he had to do, Perseus had became more mature and courageous during his journey.