Hippolyata and Theseus are talking about their wedding when Egeus comes in to complain about how his daughter, Hermia, won't marry Demetrius who she has told her to. Theseus rules that if she doesn't do what Egeus says she'll get killed or die a virgin.
Act III (Climax)
After an argument Demetrius, Egeus, and Theseus leave. Lysander (the man Hermia wishes to marry) and Hermia herself decide to run away to the woods to get married because they'd be out of reach from Athenian walls. Meanwhile somewhere else some men are calling role-call for the play they're doing "Pyramus and Thisbe".
Act IV (Falling Action)
Titania the Fairy Queen and Oberon the Fairy King are fighting because Oberon has an Indian boy attendant and wants the make him a night but Titania isn't giving up on the boy. Alse thinks he is in love with Hippolyta. We meet Puck a prankster fairy who in scene 2 follows Oberon's orders and grabs a flower. Oberon then applies the juice because it's a love potion and she'll fall in love with a beast. Puck then applies the same juice to an Athenian's eyes as Oberon ordered but it was Lysander.
Act V (Resolution)
The craftsmen meet in the woods to rehearse for the play. Puck watches and decides to turn Bottom (the most eccentric actor) into a donkey. Hermia wakes up to find Lysander gone. She accuses Demetrius of killing him. Her, Lysander, Demetrius, and Helena end up in an argument where Helena said Lysander and Demetrius were mocking her but it's revealed they love her and hate Hermia. Then the two girls fight. Puck is sent to keep Demetrius and Lysander away form each other. Then he applies an antidote given by the King.
In this short Act Theseus, Hipployta, and Egeus find our gang and wake them. Then hearing the news that Demetrius loves Helena her decides there will be a triple wedding. Also being human again Bottom reunites with his friends for the play.
They have the wedding and the craftsman play is chosen. They aren't exactly good. Misreadings, overexaggerations, stumblings, etc. However in the end everyone had a good time, it was funny, and Theseus "honorably discharged" the craftsman who were Quince, Snug, Snout, Bottom, Flute, and Starveling.