Quick recap
Myles and Beckett take the family jet without permission, and it's destroyed over Florida. The fairy police put the twins under house arrest, watched by the fairy Lazuli Heitz and NANNI, an artificial intelligence. Soon after, Myles is kidnapped. Beckett and Lazuli have to work together to find him, on a hunt that crosses continents and runs through villains' lairs. The official synopsis doesn't reveal the outcome.

