Theseus was sent to Crete in ancient Greece, he wanted and needed to kill the Minotaur, only, it was in a labyrinth where people had claimed that people had went into there and never came back out.
Just before Theseus left, his dad stopped him and told Theseus that when he comes back, replace the black sails on the boat to white so that he knows that he is alive.
Theseus then set off on his journey to face the Minotaur.
Theseus arrived at the labyrinth, he was scared but ready to go into the maze, there he met a girl called ariadne, she instantly loved him. She gave him a piece of string so he could find his way out.
Theseus found his way to the middle of the labyrinth, there he met the Minotaur. The Minotaur charged and tried to hit him but Theseus had a better plan, he grabbed the minotaurs neck and swung him to the floor. He had broken its neck and defeted the Minotaur.
He quickly ran away but realised that he didn't have the string and that he had dropped it somewhere. He thought that it was the end for him until he put his hand out infront of him and found the string. He made his way out of the laybrinth and thanked Ariadne. Theseus sailed home but didn't remember to change his flags on his boat...