Game On is the fourth episode of Season 3 of Homeland. It aired on October 20, 2013.
Carrie learns that even in its crippled state, the CIA can still exercise power when needed. Dana goes AWOL, forcing Jessica to call the police. Saul and Fara follow the money trail to an unexpected location and Carrie has a meeting.
Dana helps Leo escape from the hospital, and they go on the run together in Jessica's car. They go to Leo's brother's grave, and their conversation reveals that his brother committed suicide. Dana then takes him to the base where Brody was stationed, and says that the day he said goodbye to her before being deployed to Iraq was the last time he was honest with her. Jessica and Mike, whom she is now dating, meet with Leo's parents, who call Dana "a bad influence"; their accusatory attitude toward Jessica implies that they think Dana is just like her father. Mike starts investigating Leo, and finds out that he was sent to the hospital as part of a plea agreement — the police believe that he was responsible for his brother's death.
Fara traces the money behind the Langley bombings to an Iranian professional soccer player who died years before. Saul theorizes that the true culprit is using a fake identity.
Carrie attends a competency hearing, with apparently good chances of being released from the psychiatric hospital. Her release is denied, however, due to a directive from the U.S. Department of Justice labeling her a security risk. She calls her father and tells him to tell Saul that she will do anything he asks if he has her released. Carrie's lawyer gets an appeals court judge to grant her release, which prompts Saul to freeze her bank account and put her under surveillance. When Carrie returns home, Franklin is there waiting for her, and asks her one more time to meet with his client. She refuses at first, but agrees after Franklin promises to keep her out of the hospital permanently. She meets with the client, Bennett, a lawyer for a bank with ties to Iranian terrorists, including the masterminds of the Langley bombing. Bennett asks her to give them information about the CIA in return for their protection against the agency's reprisals against her; he says that the agency will destroy her, one way or another, unless she accepts the deal. Carrie does so, but refuses to name any agents in the field. That night, she goes to Saul's house, and he tells that she has done well; she has been taking part in an elaborate secret operation to infiltrate and bring down the terrorist organization behind the bombings.