Theseus and Hippolyta were discussing their wedding, when Egeus, Hermia, Lysander, and Demetrius enter.
Act 3: Climax
Egeus wants Hermia to marry Demetrius, but she wants to marry Lysander. Egeus asks Theseus to force her to marry and Theseus tells Hermia she must must marry Demetrius, become a monk, or be killed. Helena, Hermia's friend is in love with Demetrius. Hermia and Lysander decide to run away.
Act 4: Falling Action
Oberon the fairy king talks to his assistant Puck and devises a plan to win back the attention of the fairy queen Titania. They plan to put a flower in her eyes to make her love a beast, and give Oberon a changeling boy she stole and gives all her attention to. Oberon also sees Demetrius and Helena in the wood and tells Puck to put the potion in Demetrius' eyes to make him love Helena.
Act 5: Resolution
Puck messes up and puts the flower in Demetrius and Lysander's eyes. They both fall in love with Helena. Helena thinks that they are all mocking her and Hermia is very sad and confused. Oberon sees Puck's mistake and has him reverse the effect on Lysander. Before he reverses the effect he seperates them all and waits till they are asleep. Oberon's plan to win back Titania has also succeeded so he has Puck reverse the effect on Titania.
The four lovers awake the next morning together. The events of the previous day seem strange and foreign. They rule it out to being all but a bad dream. When they awake they have been found by Egeus, Theseus and Hippolyta. Demetrius tells them he is no longer in love with Hermia. Theseus chooses to let the couples wed alongside him.
The three couple are wed and are very happy. Everything that happened in the wood seems like a bad dream. Titania and Oberon are happy now and attend the wedding together. All of the conflicts are resolved. Puck gives a final address to the audience saying that if they did not enjoy the play, to simply consider it a dream.