egeus wants his daughter to marry demetrius but helena is secretly in love with him, and hermia and lysander are in love.
then the four lovers head into the forest at night.
there's not only the four lovers in the forest, there's also people getting ready for the wedding, and titania's fairys, titania, puck and oberon.
oberon's sidekick: puck put juice in lysander's eyes and when he woke up, the first person you see is the person that you fall in love with.
Puck accidentally sprinkles the love juice in Lysander's eyes instead of Demetrius's, which causes Lysander to fall out of love with Hermia and in love with Helena. Now Demetrius and Lysander both want Helena.
then oberon put's juice in titania's eyes and then she falls in love with oberon.