[1]

After a one night drunken stand; Hayley Marshall finds out she pregnant by one of the original vampires Niklaus Mikaelson. Eventually; after being kidnapped Hayley is brought to New Orleans; were she found the Mikaelson's. Under the circumstances; trouble comes along the way.
Nevertheless, Klaus & Hayley are willing to do anything to protect their unborn child from danger.

I mean what could happen in a town full of Vampires, Werewolves, Witches, and Hybrids?