While not titled "Empire of the Son," this is the 17th episode of Season 4. It focuses on the Lyon family's desperate battle to keep their company:
: Ben’s mother arrives in town, causing long-buried issues to surface between Ben and Serena. [S4E17] Empire Of The Son
: Russell Thorpe remains determined to destroy Chuck Bass’s family legacy. However, he risks alienating his daughter, Raina, in the process. While not titled "Empire of the Son," this