GTA IV follows Niko Bellic, an immigrant who comes to Liberty City searching for the American Dream and a man who betrayed him in the past. Instead of a better life, Niko is pulled into crime, betrayal, and violence while working for dangerous criminals. As he rises in the underworld, he must make choices that affect his future and the people around him.

Episodes from Liberty City includes two additional stories set in the same city.
In The Lost and Damned, you play as Johnny Klebitz, a biker caught between loyalty to his gang and growing chaos.
In The Ballad of Gay Tony, you follow Luis Lopez, a nightclub manager dealing with crime, money, and high society.

All three stories connect, showing Liberty City from different perspectives and revealing how crime affects everyone in the city.