dr. Mark Muir, a young American metallurgist, persuades tycoon JP Morgan to hire him for the largest shipbuilding project of all time: the RMS Titanic by Harland & Wolff shipyard in Belfast. The director of the shipping company takes the young scientist under his wing and introduces him to the Protestant elite. Mark's eye quickly falls on the charming but spoiled millionaire daughter Kitty Carlton. But he also becomes intrigued by a completely different woman: Sofia Silvestri, the daughter of an immigrant. Belfast is a city divided by class differences and religious conflict. However, Mark's past appears to be linked to the Catholic suburbs of the city.