Ayana, Mikael and Esther, along with other survivors of plague, decide to go to the New World.
Mikael and Esther created a new family with the birth of Elijah, Finn, Niklaus, Kol, Rebekah, Henrik.
Niklaus and Elijah are interested in the same girl, Tatia. They were both in love with her, although she had already had a child with another man.
Niklaus and Henrik sneak out of the caves to watch the werewolves turning, but things go terribly wrong and as a result of Henrik being clawed and bitten by the werewolves he dies.
Mikael is so distraught that he persuades Esther to turn himself and their children into vampires. Tatia's blood was used in the spell that changed them.
After the transition, it was discovered that Klaus was not Mikael's son, but that his father was a werewolf. This is the reason that Klaus is a hybrid. Mikael kills all of his wolves family and thus started the war between the two species.