The story begins when Hercules conqueres the Minyans and got to take the hand of the Princess Megara. He loved her and had 3 sons.
Hera sent madness to Hercules and made him kill his wife and 3 kids. He got really sad and stood there bewildered wanting to kill himself. Then, Theseus came and helped Hercules not killing himself making him go to Athens with him.
Call To Adventure
Hercules needed to be purified and only way to be purified was to go to King Eurystheus. He made Hercules do 12 impossible tasks nobody can ever do, but Hercules really wanted to be purified and would have done whatever he needed to do. One of the tasks was to kill the Lion of Nemea.