Crest is not excited to be on their Journey: the monthlong sojourn on land all teen merfolk must undergo. The rules are simple: Help a human within one moon cycle and return to Pacifica to become an Elder- or fail and remain stuck on land forever. Crest is eager to get their Journey over and done with: after all, humans are disgusting. They've pollluted the planet so much that there's a floating island of trash that's literally the size of a country. In Los Angeles with a human body and a new name, Crest meets Sean, a human lifeguard, whose boyfriend has recently dumped him. Crest agrees to help Sean make his ex-jealous and win him back. But, as the two spend more time together and Crest's pespective on humans begins to change, they'll soon be torn between two worlds. And, fake dating just might lead to real feelings...