When Alpha was a baby, she washed up by the lighthouse at Haven Point, a remote beach alive with wild magic. Alpha was the first foundling, and now the lighthouse at Haven Point has become a ramshackle home for any disabled child or adult who has ever felt excluded from society. They call themselves the Wrecklings, looting from passing ships with the help of the mermaids who live in their waters, and whispering superstitions to the wind and the waves. Alpha and her gang spend their days adventuring on the shore and getting into trouble with the grown-ups. Then one day, everything changes. When Alpha spots a strange light up on the headland and realizes that her beloved family are in danger of being discovered by Outsiders, it sets in motion a chain of events that will change Haven Point forever. With their home under threat, the Wrecklings must decide what kind of future they want and what they're willing to do to get it.