Tony is shocked to learn that his old friend, Big Pussy, may be a rat. He sends Paulie to investigate when Pussy acts suspiciously. Junior reaches the breaking point when he learns that Tony has been working behind his back. He and Livia begin conspiring to take action against Tony.
Elenco: James Gandolfini , Lorraine Bracco , Edie Falco , Michael Imperioli , Steven Van Zandt , Tony Sirico , Robert Iler , Jamie Lynn Sigler , Steve Schirripa , Dominic Chianese , Aida Turturro , Nancy Marchand , Robert Funaro , Robert Iler , Steve Schirripa , Steve Van Zandt , Steven Van Zandt , Tony Sirico , Vincent Curatola , Vincent Pastore .