After having to rush out to an emergency with his eldest daughter (Alexandra Mardell), Oliver was left with teen Summer Spellman (Matilda Freeman) and suffered a fit in his father’s absence.
He was rushed to the medical centre and Leanne blamed Steve for leaving him alone.
However, she soon experienced the same frightful situation when Oliver collapsed again.
In episodes to come, it will be revealed Oliver has suspected mitochondrial disease – how will his family deal with the diagnosis?
Coronation Street continues tonight at 7.30pm on ITV.