The Argonauts and Mount Pelion
He told Jason that he would surrender the throne if Jason could bring him the Golden Fleece, an impossible task that Pelias believed would lead to Jason's death.
The Golden Fleece was a magical artifact, the skin of a golden-haired, winged ram, which was kept in a distant land, Colchis, and guarded by a never-sleeping dragon.
When the Argonauts finally reached Colchis, Jason sought the Golden Fleece from King Aeëtes.
The Guardian Dragon: Finally, Jason had to overcome the dragon that guarded the Golden Fleece.
With the Golden Fleece in hand, Jason and the Argonauts began their journey back to Greece.
Upon their return to Iolcus, Jason presented the Golden Fleece to Pelias.
Mount Pelion
Jason, the hero who led the Argonauts in their quest for the Golden Fleece, was raised on Mount Pelion by Chiron.
Herculus
He also participated in the Argonauts' quest for the Golden Fleece and played a crucial role in the Trojan War, helping the Greeks.