Emmerdale spoilers follow.Emmerdale's Cain Dingle will share his regret over Tom King's prison attack next week, as his family continues to be torn apart. Belle's abusive ex-husband Tom was attack in prison by Samson earlier this month, under instruction from his uncle Cain. The attack left Tom in hospital and has jeopardised Samson's future by extending his prison sentence just when he was due to be released.