Teenaged Isobel "Belly" Conklin, whose life revolves around spending the summer at her mother's best friend's beach house, reflects on the tragic events of the past year that changed her life forever.

As Nikki plans how she's going to spend her summer, things get more complicated after she starts hanging out with a visiting student.

Hank, Emerson, and their friends have returned to Camp Outlier for another summer of fun and shenanigans. Hank won't let his RISK (Recurring Incident of the Strange Kind) factor of inconvenient invisibility stop him from having the best summer ever, even when it starts mysteriously turning people and objects around him invisible too. But between his invisibility and an internet celebrity joining their cabin, camp clown Hank is struggling to maintain...