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A socially awkward teenage maths prodigy finds new confidence and new friendships when he gains a place on the British squad at the International Mathematics Olympiad.
Last on
Music Played
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            Keaton Henson
Sweetheart, What Have You Done To Us
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            Keaton Henson
Lying To You
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            Keaton Henson
You
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            Keaton Henson
Beekeeper
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            Keaton Henson
10AM, Gare Du Nord
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            Keaton Henson
On The News
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            amiina
Thoka
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            Keaton Henson
Small Hands
 
Credits
| Role | Contributor | 
|---|---|
| Nathan Ellis | Asa Butterfield | 
| Martin Humphreys | Rafe Spall | 
| Julie Ellis | Sally Hawkins | 
| Richard Grieve | Eddie Marsan | 
| Zhang Mei | Jo Yang | 
| Michael Ellis | Martin McCann | 
| Luke Shelton | Jake Davies | 
| Isaac Cooper | Alex Lawther | 
| Rebecca Dunn | Alexa Davies | 
| Deng Laoshi | Orion Lee | 
| Nathan Ellis, 9 years old | Edward Baker-Close | 
| Ben Morgan | Percelle Ascott | 
| Pav Kamdar | Suraj Rattu | 
| Headmaster | Jamie Ballard | 
| Doctor | Clare Burt | 
| Paediatrician | Adam Foster | 
| Director | Morgan Matthews | 
| Writer | James Graham | 
Broadcasts
- Sat 9 Sep 2017 21:00
 - Sun 12 Jul 2020 00:30
 - Sun 16 May 2021 00:15ÃÛÑ¿´«Ã½ One except Scotland & Scotland HD
 - Sun 16 May 2021 00:45ÃÛÑ¿´«Ã½ One Scotland HD & Scotland only
 - Sun 21 Aug 2022 23:15ÃÛÑ¿´«Ã½ Two except Scotland
 - Sun 19 Nov 2023 00:40
 - Sun 17 Nov 2024 00:30ÃÛÑ¿´«Ã½ Two except Scotland