Werewolf Bella and Her kids move home

Werewolf Bella and her 5 year old daughter Izzy and 6 months old son Ethan move back home to La Push where her imprint Paul and younger brother Sam live. How will Paul handle meeting his son for the first time and finding out that his imprint and kids are in danger an might die. How will Sam handle knowing his sister might take the alpha role from him now that she is back home.