: It is revealed that Mr. Benedict and Number Two are being held by Dr. Curtain, who has rebranded himself as a "happiness" guru. Episode 2: A Bit of Light Chop
: On the ship, the children must blend in with the passengers to avoid detection by Third Officer Cannonball and Captain Noland.
: Rhonda, Milligan, and Ms. Perumal board a dirigible in an attempt to catch up with and stop the children.
Below is a write-up of the key events from the first half of the season:
: Defying orders from the remaining adults (Rhonda, Milligan, and Ms. Perumal), the kids stow away on the ocean liner Shortcut to begin their international rescue mission.