Olivia confronts Annie about her true intentions towards Gregory and Olivia's children. Annie talks to Caitlin and tells her that she should blame Olivia for everything that has happened to her, but Caitlin tells her that she blames Gregory much more than Olivia for her miscarriage. Mark reveals Ben's face under the mask, and manages to escape from him. He runs away, while Ben (hurt from the wound where Tim stabbed him) follows him. Sadly, the others find Mark with a hook in his back. Meg and Tim start screaming, while Mark is about to die. Before he dies, Tim hears Mark's last words: "It was Ben." (thetvdb.com)