Evacuated from their home, two teenage sisters unite with fellow survivors and escape London by river to embark on an odyssey across the badlands of Britain.
Bethan Mary Leadley
Chloe Murdock
Cherry Wallis
Sam Murdoch
Stuart Ashen
Bob
Drew Casson
Cowen Rosewell
Jamie Paul
Hopper
Mawaan Rizwan
Ricky
Georgia Bradley
Philippa Martell
Tom Scarlett
Adam Martell
Sam Carter
Kipper
Paul Neafcy
Brian
Lee Kelly
Soldier
Colin Murtagh
River Henchman
