The story starts with Hermia's father, Egeus, telling the Duke of Athens that she must marry Demetrius and not her love Lysander or be put to death. Secretly, Lysander and Hermia plan to run away and meet in the forest. Hermia tells her best friend Helena.
Helena, selfishly, tells Demetrius of Hermia's plan hoping that her loyalty will win Demetrius over. Oberon, King of the fairies, sees poor Helena and instructs his servant, Puck to make Demetrius fall in love with Helena.
Puck accidentally puts the potion on Lysander and to Hermia's shock he is now in love with Helena along with Demetrius