Benjamin intenta ayudar a un chico y éste le entrega un paquete para que se lo entregue a un tal César. Dentro va una fórmula secreta que, accidentalmente, es destruida. Gerónimo será secuestrado por alguien que quiere la fórmula a toda costa

Trampita quiere convertirse en espía y se comprará un kit de espionaje. Mientras, Gerónimo y su familia investigarán el robo de un videojuego que todavía no ha sido lanzado al mercado.

Time and time again Geronimo is scooped by The Daily Rat, a rival news organization.  Despite his best efforts, any secrets Geronimo has seem to get leaked.  When Geronimo is given the task of keeping New Mouse City's super-secret celebrity a secret for the city's 100 year celebration, Geronimo finds it a tough mission to keep.  It turns out that Geronimo is being careless with his notes and tossing everything into the trash without shredding them first

When a pair of extremely rare Shufongfong lizards are stolen from the New Mouse City Museum, Geronimo suspects that the visiting Prince Nogouda is the culprit. Geronimo’s suspicions take our heroes deep into the savage Bandel Jungle where they learn that rare lizards are not the only thing that the Prince is interested in adding to his collection.