As MI High returns to CBBC, Joel, Helen and Andy learn what it takes to become a real-life spy, and look back over the most dramatic and scary moments in MI5's 100-year history.
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As MI High returns to CBBC, Joel, Helen and Andy learn what it takes to become a real-life spy, and look back over the most dramatic and scary moments in MI5's 100-year history.
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.
