Our hero Perseus (remember him), was flying through the air, borne on his winged sandals. He was feeling quite proud of himself since he just killed Medusa earlier in the day. Suddenly he hears a scream and looks down to see a young maiden chained to a rock about to be devoured by a sea monster. Perseus thinks, "Man, does it get any better than this?" Not only did he kill Medusa, but now he can save a maiden in distress.
Perseus yells down to Andromeda to close her eyes and he pulls out Medusa's bloody head. He shows the head to the sea monster who instantly turns to stone, cracks of his own monstrous weight, and falls to the bottom of the ocean never to be seen again. Perseus swoops down to unchain Andromeda, and they fly away to live happily ever after.