Different to the other deal as this is for "turn up and go" tickets. No advance booking needed and you're not tied to specific trains although there are restrictions on times.
From any ticket office or website ask or search for:
Off-peak return Virgin only Manchester to Stoke - £13.10 or £8.65 railcard. You can get any Virgin train (2 an hour most of the day) after 9:30AM weekdays, any time weekends.
Super off-peak return Stoke to London Virgin only - £39 or £26 railcard.
On weekdays you Can take any train from Stoke after 10:50 and any train back between 12pm and 2pm or from 8pm onwards.
Weekends you can take from 09:50 from Stoke and again after 20:00 return.