A socially awkward teenage math prodigy finds new confidence and new friendships when he lands a spot on the British squad at the International Mathematics Olympiad.
Asa Butterfield
Nathan Ellis
Rafe Spall
Martin Humphreys
Sally Hawkins
Julie Ellis
Eddie Marsan
Richard
Jo Yang
Zhang Mei
Alex Lawther
Isaac Cooper
Alexa Davies
Rebecca Dunn
Martin McCann
Michael Ellis
