hd.thomson-multimediaM.I.High The First to Crack (2007– ) watch online HD
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Short summary
When a deadly poison is stolen from M.I.9, the team suspects eccentric puzzle maker Quillian Pendrix. After he announces a competition with the five winners being given a tour of his puzzle factory, Rose steps up. The team must find the poison, get it back to M.I.9 safely, and avoid detection.
| Episode cast overview, first billed only: | |||
 | Rachel Petladwala | - | Rose Gupta |
 | Charlene Osuagwu | - | Carrie Stewart |
| Ben Kerfoot | - | Oscar Cole |
 | Jonny Freeman | - | Frank London |
| Chris Stanton | - | Mr. Flatley |
 | Channelle Owen | - | Mrs. King |
 | Jonathan Rhodes | - | Chief Agent Stark |
 | Julian Bleach | - | The Grand Master |
 | Ramon Tikaram | - | Quillian Pendrix |
 | Antonia Kinlay | - | Sarah Kapalski |
| Christopher Brandon | - | Damon Travers |
 | Sam Melvin | - | Scoop Doggy |
| Jenny Huxley Golden | - | Avril Franklin |
| Eliza Cummings-Cove | - | Davina Berry |
| Joseph Cocklin | - | Donovan Butler |