Romeo is daydreaming in Mantua about reuniting with Juliet when Balthasar arrives. Balthasar tells Romeo that he has seen Juliet being placed in her tomb. Romeo says "Then I defy you, stars!" He rushes to Verona to be with his love. On the road, they pass Friar Laurence's messenger, Friar John. Romeo stops at an apothecary to buy a dram of poison. The apothecary hesitates to sell the illegal drug, but Romeo persuades him and the apothecary sells it to him.
While Romeo is making his way to Juliet, the Friar speaks with Friar John, his messenger, and learns that Romeo never received word of the plan involving Juliet's death. Unaware that Romeo is in Verona, Friar Laurence rushes to the tomb to release Juliet.
At the tomb, Paris is paying his respects to Juliet with flowers and scened oils. Romeo arrives and the burial site, gives Balthasar a letter for Lord Montague that explains the entire situation, then sends his servant away. Paris thinks that Romeo is there to defile Tybalt's grave and challenges him to a duel. Romeo wins the fight. Paris asks Romeo to place him in the tomb beside Juliet and then he dies. Romeo carries Paris' body into the tomb and grants his final wish.
Romeo speaks to Juliet of her fairness, even in death. Then he drinks the poison. If only Romeo had waited a few more seconds before drinking the poison, he and Juliet could have been together. But, he didn't and as he was dying, Juliet was waking up. The Friar arrived and tried to get Juliet out of the tomb before the night watch, alerted by Paris' page, arrived. When she saw Romeo lying in the tomb, she would not leave. The Friar left her there and ran. Juliet went to Romeo. She saw that he had poisoned himself and kissed him, trying to get some of the poison from his lips for herself. There wasn't any poison left, so she picked up Romeo's dagger and killed herself.
The night watch caught Friar Laurence as the Prince had arrived. The Prince called Lord Capulet and Lord Montague together. Lord Montague was very sad because his wife had died that night after hearing that Romeo had been banished. The Friar had to come clean about the young lover's marriage. The letter that Balthasar, who was also brought in by the night watch, gave to Lord Montague confirmed the Friar's story. The Prince told both families that now everyone had been punished because of their feuding, even himself - as Mercutio and Paris were both his cousins.
The two family heads shook hands and agreed to end the feud as a wedding gift to their dead children. Lord Montague promised to put up a golden statue of Juliet as a reminder of what they had lost. The play ends with the Prince saying "for never was a story of more woe, then this of Juliet and her Romeo."