Hermia and Lysander love each other, but Egeus does not agree with there love and wishes Hermia to marry Demetrius. Lucky for Egeus, Demetrieus loves Hermia.
Hermia and Lysander knew they couldn't be together if they stayed with Egeus so they ran away. Along their journey they met Helena, a girl who Demetrieus once loved, and told her of their decision. Helena took this as her chance and told Demetrieus!
Meanwhile in the forest Oberon and Titania where arguing because Titania was spending to much time with a changeling boy.