At the end of Eclipse, Jacob runs away. Sam thinks it's only temporary; anyone would be upset if the girl they loved was getting married to someone else. But Sam feels that something else is wrong with Jacob. And Sam is right. After a long “Jacob Rescue Mission” the Quileute wolves pester Jacob into telling them what’s wrong. Reluctantly, Jacob tells his wolf friends that Bella is getting married to the bloodsucker, Edward, and will be bitten shortly after.

Sam and the other Quileutes become upset, not only are the Cullen’s breaking the treaty, but they’re going to bite Bella of all people.

And so, the Quileute wolves declare war on the Cullens for breaking the treaty, and Bella is torn between two sides. She loves Edward, but how can she give up her ‘friendship’ with Jacob?

Meanwhile, as the fight between the two sides rages on, Bella is determined to get all of her loved ones out of the town in case something gets out of hand. She’s thankful that Angela and Ben are on vacation, and Jessica is away checking out her new College. The only problem for Bella is that her mother, Renee, is coming in to Forks early to be with Bella one last time before she goes off to get married. This frightens Bella, of all people, her mother is the last person she wants to get hurt.

In addition to Renee and Phil coming to Forks for the wedding, the Denali vampires, the only other coven of vegetarian vampires besides the Cullens, are also in for the wedding early. But their reason is much different than Renee and Phil’s. The Denali vampires have heard of the broken treaty through Carlisle, and have come down to fight against the werewolves too.

With the wedding just weeks away, will Bella and Edward have to postpone it? And what’s going to happen about the fighting? Will it go so far that someone will get hurt, or worse, killed?