Puck likes making trouble. So, when he sees the workmen practising their play he makes a spell which gives Nick Bottom, the loud mouth, the head of a donkey. Puck then makes sure that it is Nick Bottom who Titania sees when she wakes. Puck thinks this is hilarious.
Oberon has found out about the four young people who have been getting lost in the forest. Oberon tells Puck to put some of the magic juice into Demetrius’ eyes so that he will love Helena, but Puck gets it all wrong and puts the juice in Lysander’s eyes. The first person Lysander sees is Helena – and he declares he now loves her and not Hermia.
Puck then puts the juice in Demetrius eyes. Now both young men say they love Helena and want to fight each other. Helena thinks everyone is making fun of her, and Hermia is left on her own.
As the sun starts to rise Oberon manages to sort everything out. The potion is put on the eyes of the right men so that Lysander loves Hermia again and Helena and Demetrius become lovers. Nick Bottom is given his own head...
...and Oberon and Titania forgive each other.
As part of the celebrations Peter Quince, Nick Bottom and their friends act out their play for the wedding party. It is supposed to be the sad story of Pyramus and Thisbe – two lovers who are separated and die without being able to marry.The acting is so bad that everyone thinks the play is hilarious – but the Duke is very polite and thanks the workmen.