After unsuccessfully arresting Red John last season, Jane continues his hunt for his enemy in season two. However, Lisbon and his team now are set aside for the case, and CBI Agent Sam Bosco is newly assigned for capturing Red. Jane then decides to solve "one more case" before leaving the CBI, which proves to be a luck for Lisbon cause Jane helps her when she gets badly involved in a murder and a criminal she put away years ago. As more cases unraveled one by one, Jane's stay in the force may be also redecided as Bosco and his team are murdered by Red John and the case is given back to Lisbon.