Aliya's brother is accused of being a suicide bomber. Dan thinks his dad is linked to the gun he's found in a derelict block of flats. But the truth that connects them is far more dangerous than either could imagine. Can they prove their families' innocence? Not long after Aliya's family escapes Afghanistan for Britain, her brother is accused of a bomb attack. Aliya is sure of his innocence, but when plumber's son Dan finds a gun in their bathroom, what's she to think? Dan has his own reasons for staying silent: he's worried the gun might have something to do with his dad. Thrown together by chance, they set out to uncover a tangled and twisted truth.