Each year Heracles, who is the son of Zues had a Labour to prove that he is the most powerful man ever lived.
When he was born Hera decide to kill Heracles, so that night Hera send two poisonous snake on to Heracles bed but he made a shock for Hera he catches the two evil snakes, squeeze it's neck and the threw it away!!!
Many years later, he has grown up so Hera and King Evrystheus start the challenge for Heracles to prove that he is the most powerful man ever lived, to start with Hera control his mind and make him kill his own wife, his own children. After a while he suddenly don't know that he have just killed his family, he was so mad and went to start the labours which no god or mortal beaten before. Each beast took him one years to find and there are 12 beast which he needed to defeat, the first one is The Lion of Nemean Mountain, the second one is the nine headed Hydra and lots more!
He defeat every single one of them until Hera and King Evrystheus have decided to give up!!!!!!!!!!!!!