The accident has created a terrible workload. Tensions between classes escalate. Pirrie and Michael finally manage to come to an understanding that appease the workers, but not magnate Charles Stokes. Unfortunately, Conor MacCann, Emily's younger brother, is driven towards more extremist acts after he gets fired. The Fenian movement, a Catholic terrorist group, takes Conor in. Mark suggests building a double hull for the Titanic. But Pirrie is unimpressed. It would mean wasting too much time. To try and forget his many concerns, Mark manages to take Sofia away for a romantic weekend. It is a time when love flourishes, giving both of them the illusion that everything will be fine. Henry Carlton has discovered Mark's real identity. Carlton is furious that his daughter, Kitty, has been in a relationship with a Catholic impostor. Kitty is disowned and she decides to leave Belfast. As soon as Mark comes back he is summoned and fired.