Leonardo - Season 1 - Eps 2: Da Vinci's Code
Aware of Leonardo's budding genius Piero steals his notebook but finds it impossible to understand because all the information for his designs are written in code. He brings in Maths professor Pico to decipher it but even he is foiled as Leonardo,at great risk to himself,eventually retrieves his notebook.
About Leonardo

Title: Leonardo
First Air Date: 2011-04-11
Last Air Date: 2012-12-06
Status: Ended
Rating: 7.5/10 (from 4 votes)
Language: EN
Seasons: 2
Total Episodes: 26
Network: CBBC
Genres: Action & Adventure, Drama, Family
Production Companies: Kindle Entertainment
Synopsis
Leonardo is a British children's television series broadcast on CBBC. The show is an adventure programme featuring a teenage Leonardo da Vinci starring Jonathan Bailey. The series is set in 15th-century Florence. A second series premiered on CBBC on 20 September 2012, starting with episodes one and two being shown back to back. For Series 2, actor James Clyde replaced Alistair McGowan in the role of Piero de' Medici. It was announced on 21 January 2013 that Leonardo would not be recommissioned for a third series.
Cast

Jonathan Bailey
Leonardo

Colin Ryan
Lorenzo De Medici

Flora Spencer-Longhurst
Lisa / Tom

Akemnji Ndifornyen
Machiavelli

James Cuningham
Verrocchio

James Clyde
Piero de' Medici