Ferris and his family have another adventure when an unexploded bomb is found at his school. Since Ferris Foster's dog got famous, life has taken a surprising turn:
1. Ferris's new foster brother, Nile, has burst into his life with a BANG, making Ferris worry that his mums might give up fostering for good.
2. Something HUGE, OLD and DANGEROUS has been discovered under Ferris's school, causing it to CLOSE DOWN! (For now.)
3. Ferris is still a cartooning genius, but between homeschooling and Nile's dodgy science experiments, finding somewhere quiet to draw has become practically impossible.
Ferris' teacher presents the children with an arty competition, but can the boys put their differences aside, work as a team and win the once in a lifetime opportunity? Or will Nile's obsession with experiments have EXPLOSIVE consequences?
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