Puck overhears their rehearsals in the wood and he plays a trick on them by given Bottom an ass's head which frightens the others away.
Bottom is lured towards the sleeping Titania whom Oberon has treated with the flower juice. On waking, she falls in love with the ass and entertains him with her fairies.
But when Bottom falls asleep beside her, Oberon restores Titania's sight and wakes her. She is appalled at the sight of what she been in love with and is reunited with Oberon.
Puck removes the ass's head and Bottom returns to Athens and rejoins his friends as they prepare to perfume their play.
Meanwhile the lovers' arguments tire them out as they chase one another through the woods and when Demetrius rests, Oberon puts magic juice on his eyes so that both he and Lysander pursue Helena until the fourlovers fall asleep, exhausted.
Puck puts juice on Lysander's eyes before the lovers are woken by Thesus and Hippolyta and their dawn hunting party.