After finally getting a cell phone, Babymouse tries to increase her popularity in middle school by becoming the queen of social media.

Tuck, Munch, and Alex are a trio of inseparable friends whose lives are about to change. Their neighborhood is being destroyed by a highway construction project that is forcing their families to move away. But just two days before they must part ways, the boys begin receiving a strange series of signals on their phones. They discover something beyond their wildest imaginations: a small alien has become stranded on Earth.