If I have an off peak return for rishton to Northampton, my normal trains being Rishton to Preston, Preston Birmingham and then Birmingham to Northampton. My normal train back is the 17:55 from Northampton to Birmingham and then the 19:15 from there, this being the last train to connect with the last train off Preston. My question is if I miss the 19:15 would I be able to travel via Manchester on the same ticket.