Most of the play was lost by the end of the Antiquity, and only 90 verses, grouped into 29 fragments, currently survive.
The play apparently began with Bellerophon riding his horse Pegasus carried in the air by the crane.
[1] Bellerophon, who seems to have lost everything, lives on an uncultivated land with his father Glaucos and Pegasus.
Deeply pessimistic about his condition, Bellerophon eventually believes the gods do not exist.
He subsequently decides to reach Mount Olympus, thanks to Pegasus's flying abilities.