The second season picks up where the first season left off, with Michael and Lincoln on the run. The brothers must evade the authorities and the company's agents, led by the ruthless Agent Paul Kellerman (Paul Adelstein). Meanwhile, new characters are introduced, including Sara Tancredi (Sarah Wayne Callies), the prison doctor who becomes a key player in the escape. The season explores themes of loyalty, power struggles, and the consequences of the characters' actions. Notable episodes include "Manhunt" (Episode 1), "The Killing Box" (Episode 14), and "Chicago" (Episode 22).