The Sinister-Winterbottoms, twins Alexander and Theo and their older sister Wil, find themselves at a mysterious summer camp where they meet other families whose parents are missing.

"Phoenny Fang plans to have the best summer ever. She's returning to Summertime Chinese Culture, Wellness, and Enrichment Experience (SCCWEE for short and (3z(BSquee(3y(B to campers in the know), and this year she's a senior camper. That means she; her best friend, Lyrica Chu; and her whole Squad will have the most influence. It almost doesn't matter that her brother is a CIT (counselor-in-training) and that her mom and auntie are the camp directors....

On the shores of Venice Beach, eight strangers, staying in a rundown backpackers hostel, are all running from something-and have secrets they're more than willing to kill for.