For those unfamiliar with the play, a brief rundown of its ridiculous events:
Theseus, the Duke of Athens, is preparing for his marriage to Hippolyta, queen of the Amazons. Egeus enters with his daughter Hermia and her suitors, Demetrius and Lysandra. Egeus wishes Hermia to marry Demetrius, but Hermia is in love with Lysandra. Theseus warns Hermia that disobeying her father could result in her being sent to a convent or even executed. Defiant, Hermia and Lysandra plan to elope that night through the woods outside the city. They confide in Hermia’s friend Helena, who was once engaged to Demetrius. Hoping to regain his love, Helena tells Demetrius of their plan; Demetrius heads to the woods, with Helena following close behind. Meanwhile, a group of Athenian workers have decided to perform a wedding play for the duke and his bride, despite their utter lack of theatrical experience or talent. They also go to the woods, in order to rehearse away from prying eyes.
The woods are ruled by Oberon and Titania, the fairy king and queen, who are at odds over a changeling child, held by Titania and coveted by Oberon. Oberon sends his servant Puck to acquire a magic flower that causes love at first sight. After drugging Titania in her sleep, Oberon tells Puck to use the flower on Demetrius, whom he observed acting cruelly towards Helena. Puck accidentally drugs Lysandra instead; his attempt to remedy this results in both Demetrius and Lysandra spurning Hermia and wooing Helena. They all quarrel, fight, and run mad through the woods, led on by Puck, until they collapse into sleep.
Puck also disrupts the workers’ rehearsal by giving Bottom, their buffoonish chief actor, the head of an ass. Bottom stumbles upon the sleeping Titania, who promptly falls in love with him and surrenders the changeling child to Oberon. Oberon gives her an antidote to the love flower, which Puck has previously used on Lysandra (but not Demetrius). As everyone awakes, all is well: Titania reconciles with Oberon, Lysandra loves Hermia, Demetrius loves Helena, and a bewildered Bottom is human again. Encountering the four lovers and learning of their changed affections, Theseus overrules Egeus and declares that all shall be married that day, including Hermia and Lysandra. After the group wedding, the newlyweds watch the workers perform their play, with much tragical mirth. The play over, the couples retire, perchance to dream again, as the fairies bless their marriage beds and Puck begs our applause.