The group are trapped indoors by a heatwave and Jess determines to get her family on the next boat home. Tensions mount as the power shorts, the stolen money resurfaces and unwanted visitors threaten to destroy Zoe's chance at happiness with Solomon. Can she escape what the Fates seem to have in store for her? Nat and Jacob have some making up to do but as the temperature soars, they too are pushed to breaking point. This isn't going to end well.

Zoe is looking to a future with Solomon, but her awakening seems to have deadly consequences as a wildfire threatens the island. Not everyone will make it home and none of them can go back to who they were. Jacob can't outrun his problems, and Nat must choose her future. Losing Zoe will drive Dan to take dangerous risks and force them both to confront the truth about who they are and what they want. Zoe will have to make a painful decision to step into her life anew.