Luke's sister Liz feels like her son Jess is getting into too much trouble and asks Luke to take care of him. Lorelai decides to throw Jess a welcome party, but at the party Jess is only nice to Rory. Luke receives phone calls about Jess stealing money and lawn gnomes and tries to talk to Jess, but becomes too angry, and pushes him into the lake. Later, Luke goes to confront Jess and lays down his new rules. Meanwhile, Paris is trying to make Rory's life miserable at "The Franklin" by assigning to interview Mr. Medina.