United have a trip to Aldershot Town or Solihull Moors in the fifth round as an incentive to beat the National League Spireites on Wednesday – and you can watch all of the action for just £7.99 on Boston United Live.
Wednesday evening's commentary will be provided by Rob Makepeace and Mark Hone of BBC Radio Lincolnshire – and the coverage is once again kindly sponsored by Prime Limousine Services.
In addition to a fifth round berth, there is also £5,250 in prize money up-for-grabs for Wednesday's winners.
PIC: Russell Dossett.