12-year-old Conor encounters an ancient tree monster who proceeds to help him cope with his mother's terminal illness and being bullied in school.
Lewis MacDougall
Conor
Sigourney Weaver
Grandma
Felicity Jones
Mum
Toby Kebbell
Dad
Ben Moor
Mr. Clark
James Melville
Harry
Oliver Steer
Sully
Dominic Boyle
Anton
