| Series 3 | |
 | |
| Network | CBBC |
| Run | 5 January - 30 March 2009 |
| Episodes # | 13 |
| Series: | • 1 • 2 • 3 • 4 • 5 • 6 • 7 • |
Series 3 of M.I. High ran from 5 January 2009 - 30 March 2009 and consisted of 13 episodes.
Synopsis
The old school spies have had their day and are retired, revealed, or rumbled. Threats to British national security are at an all time high and new technology has forced a break with the past. M.I.9 has created a new type of undercover agent, hidden in a place the enemy will never suspect, Saint Hopes School.
Series Changes
- Daisy has left the series, replaced by Oscar Cole
- Blane has left the series, replaced by Carrie Stewart.
- Lenny has left the series, replaced by Frank London.
- Miss Templeman has left the series, replaced by Mrs King.
- Saint Hopes students have been replaced by; Avril Franklin, Davina Berry, Donovan Butler, Scoop Doggy and his crew.
- Saint Hopes is seen to look different than the Series 1-2 Saint Hopes School.
Episodes
- Art Attacks
- The Mole
- Agent X
- Mind Machine
- Dark Star
- Fit to Wurst
- The New Grand Master
- Think Tank
- Family Trees
- The Glove
- The Visit
- Operation Flopsy
- Moontaker
Gallery
Frank London
Rose Gupta
Oscar Cole
Carrie Stewart
Mr. Kenneth Flatley
Mrs. Hermione King
Scoop Doggy
Avril Franklin
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