13 of 13 episodes
S03E01
Art Attacks
January 5, 2009
S03E02
The Mole
January 12, 2009
S03E03
Agent X
January 19, 2009
S03E04
Mind Machine
January 26, 2009
S03E05
Dark Star
February 2, 2009
S03E06
Fit to Wurst
February 9, 2009
S03E07
The New Grand Master
February 16, 2009
S03E08
Think Tank
February 23, 2009
S03E09
Family Trees
March 2, 2009
S03E10
The Glove
March 9, 2009
S03E11
The Visit
March 16, 2009
S03E12
Operation Flopsy
March 23, 2009
S03E13
Moontaker
March 30, 2009
13 of 13 episodes
S04E01
Run, Carrie Run!
January 4, 2010
S04E02
The Bunny Whisperer
January 4, 2010
S04E03
Quakermass
January 11, 2010
S04E04
Don't Cook Now
January 18, 2010
S04E05
Mrs King - License to Spy
January 18, 2010
S04E06
Return of the Mummy
January 25, 2010
S04E07
Dopplegangers
February 1, 2010
S04E08
High School Spy Movie
February 8, 2010
S04E09
Black Hole
February 15, 2010
S04E10
Three Spies and a Baby
February 22, 2010
S04E11
Millionaire Flatley
March 1, 2010
S04E12
Skuldiggery
March 8, 2010
S04E13
The Octopus
March 15, 2010
13 of 13 episodes
S05E01
Vote Skul
January 10, 2011
S05E02
The B Team
January 10, 2011
S05E03
Ghosts
January 17, 2011
S05E04
Total Eclipse
January 24, 2011
S05E05
The Gran Master
January 31, 2011
S05E06
The Patient
February 7, 2011
S05E07
The Crystal of St. Helena
February 14, 2011
S05E08
The Wasp
February 21, 2011
S05E09
Bully Elliot
February 28, 2011
S05E10
Tim Brown's SKUL Days
March 7, 2011
S05E11
The First to Crack
March 14, 2011
S05E12
Day of The Jacket
March 21, 2011
S05E13
The Lost Hero
March 21, 2011