Nathan was furious when he heard Ryan call Mark Dad but went to look after Maisie and his mother. Mark tried explaining but no one wanted to listen so when they left, he went to the woods with a shotgun. Natasha found him and, scared he would shoot himself, persuaded him to give her the gun. But listening to Mark talk about how he was tired of running, infuriated Natasha so much that she shot him and buried his body in the woods. Returning to the house, she told her children that Mark has left and she has no idea where he is. On 28 January, Faye reported Mark's disappearance. They question Natasha, who tells them about Mark's life as Daniel Lamb and that he is a bigamist. Nathan is suspicious of Natasha's erratic behaviour, following Mark's disappearance, and she eventually tells Nathan that she killed him. Initially furious, he tried digging up Mark's body but agreed to keep Natasha's secret for the sake of his siblings and on condition that Natasha gives him her money. She does and Nathan leaves the village for London. Businessman Declan Macey buys a 51% share of Home Farm Estate. He and Natasha later start dating. Nathan returns in May and takes an instant dislike of Declan. He demands that Natasha end things with Declan and buy him out but she refuses. Nathan threatens to report her to the police for Mark's murder but backs down when Natasha tells him she'll report him for helping cover the murder up. Nathan returns Natasha's money and starts running the Estate with Natasha and Declan. In June, Sam Dingle finds Mark's wallet. His half-brother, Cain, uses Mark's credit card to send the family some flowers. Natasha initially thinks Nathan sent the flowers and throws them at his car when he pulls up outside the house. Cain also sends one of Mark's suits to Declan, who demands the truth from the Wyldes. Natasha later arranges to meet Cain after Nathan tells her that he is the blackmailer and he demands money but she refuses. Will later goes missing and Natasha thinks that he has been kidnapped. She and Nathan later discover that Cain took Will and Belle to the cafe for ice cream. Thankful that Will is safe, Natasha pays Cain to stay away from them. In July 2010, Nathan and Natasha plan to frame Faye for Mark's murder. Natasha agrees to the plan, believing Mark's death would have never happened if Faye hadn't come to the village.