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The BBC West region started on 1st September 1957 as part of the BBC Television Service, before becoming BBC One West.

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M.I. High

Children's: Drama

Children's drama series about undercover agents in an inner-city high school

Series 5

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CBBC Channel

Simulcast of network BBC One in high definition. From 03/11/2010

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The BBC South West region started on 20th April 1961 as part of the BBC Television Service, before becoming BBC One South West.

BBC One South West

The BBC South region started on 5th January 1961 as part of the BBC Television Service, before becoming BBC One South.

BBC One South

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BBC One region covering Derbyshire, Leicestershire and Nottinghamshire.

BBC One East Midlands

The BBC East region started on 1st May 1959 as part of the BBC Television Service, before becoming BBC One East.

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The BBC North East & Cumbria region started in 1959 (tbc) as part of the BBC Television Service, before becoming BBC One North East & Cumbria.

BBC One North East & Cumbria

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Formerly part of a wider BBC One South East region that included London and part of the South region. Separated from BBC One London 2001-09-03 following reorganisation of the South East region.

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BBC One Cambridgeshire

BBC One Channel Islands

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BBC Northern Ireland region started on 19th April 1955 as part of the BBC Television Service, before becoming BBC One Northern Ireland.

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Wales

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Until 03/01/2009 BBC Two Wales (analogue) was known simply as BBC Two Wales. BBC Two Wales (digital) was BBC 2W. From 03/01/2009 BBC Two Wales schedules on both analogue and digital became identical

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England

M.I. High: Series 5

Charlene Chika Osuagwu

Rachel Petladwala

Ben Kerfoot

Jonny Freeman

Chris Stanton

Channelle Owen

Jonathan Rhodes

Ramon Tikaram

Antonia Kinlay

Christopher Brandon

Sam Melvin

Jenny Huxley Golden

Eliza Cummings-Cove

Joseph Cocklin

Anthony Genas

Emma Kingsman-Lloyd

Richard Elson

Nathan Cockerill

M.I. High: Series 5: Episode 11: The First to Crack

The First to Crack

Episode 11

Episode 11: The First to Crack

M.I. High - CBBC - BBC

When a deadly poison is stolen from MI9, the spies suspect an eccentric puzzle maker.

Children's spy drama. When the world's most deadly poison is stolen from MI9, the spies suspect it is connected to eccentric puzzle maker Quillian Pendrix.

A safe containing the world's most deadly poison is stolen from MI9, and Stark assigns the MI High team to investigate its theft. Meanwhile, the country is being swept by a new craze - eccentric puzzle maker Quillian Pendrix has released his latest fiendishly hard puzzle and promised a tour of his puzzle factory and mystery prize to the first five people who solve it.

As Rose and Oscar search for clues, Carrie accidentally knocks over some dangerous chemicals and endangers the team. Feeling bad about the incident, Carrie finds her confidence sinking to an all-time low. Oscar discovers that one of the thieves who stole the safe works for Pendrix Puzzles, and on examination of the latest puzzle, Rose notices that its mechanism is similar to the lock on the stolen safe. Could Pendrix be using his contest to find someone who can open the safe and get the poison? 

The team ask Stark for a warrant to search the factory, but he refuses. They realise that the only way to gain entry to the factory is for Rose to complete the Pendrix Puzzle and win a place on the tour. With only one place remaining, Rose stays up all night and eventually completes the puzzle, but is beaten to it - by Mr Flatley! Just when the spies are despairing, another contest winner is revealed to be a cheat and Rose claims the final spot on the tour. 

In the factory, Pendrix reveals the safe door and challenges each contest winner to try their hand at opening it. Once again, Mr Flatley surprises everyone by solving the puzzle and opening the safe. Pendrix quickly ushers the contest winners away and the spies take the opportunity to steal the poison, but with guards and alarms everywhere, can Carrie conquer her nerves in time to navigate the poison to safety?

CBBC

The BBC's multiplatform offering bringing the very best programmes to 6-12 year olds.

CBBC is the BBC's multiplatform offering for 6-12 year olds bringing the very best drama, entertainment and factual programmes to its young viewers.

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