Hercules was sent to Earth because Zeus's wife wants to kill Hercules.
Once Hercules gets to Earth, his cousin Eury also wanted to kill him because he thought he was going to steal his crown. Eury later, said to Hercules that you need to complete 12 tasks to get his immorality.
You have to complete 12 tasks to get your immorality. Come to me for your last task.
Ok! What do I have to do first?
Hercules gets done with all of the 11 tasks and goes to his cousin, Eury and asks him what is the last task.
Yes, I'm finally done with all 11 tasks! Eury I'm ready for my last task.
Ok I will tell you what the last task is. When you get the last task done come follow me.
Hercules Gets the last task done and after he gets it done he thinks to himself if it was worth it.
Yes, I've done it
But...Is it worth it
Hercules come on!! Follow me!!
Once Hercules and Eury get to the top of the mountain. Eury makes Hercules lie down on the floor and "Gives" him his immorality.
I will now "Give" you your immorality.
After, Eury tries to kill Hercules. Zeus gets mad and kills Eury with his lightning bolt. So Hercules lives and he learned some people can be true friends and some can be tricksters.