This film is adapted from the best-selling novel "The Twilight Saga: Breaking Dawn" by American female writer Stephenie Meyer. It is the final chapter of the work. Due to its length, it is divided into two parts. Bella (Kristen Stewart) and Edward (Robert Pattinson) finally entered the marriage hall after going through hardships. After marriage, Edward and Bella went to the island of Esme for their honeymoon and spent a happy time. Soon Bella found out that she was pregnant and the honeymoon ended early. The wolf tribe was worried that the fetus would pose a threat to the tribe and decided to get rid of it. Jacob (Taylor Lautner) left the wolf tribe to protect Bella and warned the Cullen family overnight. The rapid growth of the fetus made Bella suffer. Edward couldn't bear to see her suffer and hoped that she would give up the child, but Bella insisted on giving birth. On the night of delivery, Bella lost a lot of blood. When her life was hanging by a thread, Edward inserted a needle filled with his own blood-sucking venom into Bella's heart. On the other hand, the royal family also noticed this newborn, and a showdown that would shake the world of vampires, werewolves and humans was quietly approaching...