Emmerdale S42 E29 Episode 6467 (Mon 4th Feb 2013)

Debbie is still angry with Cain for beating up Cameron, while Zak warns Cain that he won't stand by and watch Debbie get hurt. Zak pleads with Moira to help him get through to Cain, finally making the heartbreaking admission to her that it was him who attacked Cain last winter. Moira is shocked and confronts Cain over it.