Complex sentence: When he discovered he had stomach cancer in 2005, he returned to Weatherfield to look for Tracy so he could make amends, arriving on the day of Ken and Deirdre's second wedding and hit baby Amy Barlow's pram.
Split into simpler sentences: When he discovered he had stomach cancer in 2005, he returned to Weatherfield to track down Tracy to make amends. Ray arrived in Coronation Street on the day of Ken and Deirdre's second wedding and hit baby Amy Barlow's pram.