Staff were held hostage after robbers armed with a 'Zombie' knife broke into a budget chain store.
CCTV footage captured Joseph Nunn, 25, Daniel Cooke, 28, and another man, using an angle grinder as B&M staff opened for business, Manchester Evening News reports.
They removed the main door and ran towards the storage room, where a member of staff was held by the collar and forced the staff room, Minshull Street Crown Court heard.