A man is found dead due to blunt force trauma to the head. But Before the team can start to really investigate, Bosco arrests Jane for bugging the agent's office.
Bosco gives Jane the chance to avoid being charged if he steps down to Consultant to the CBI but Jane opts to see Bosco in court. Before he can post bail, Jane has to spend 3 days in county jail.
His tough façade only lasts for so long before he regret choosing jail. But he impresses the inmates with his mentalist skills and buys himself a bit more safety in the jail walls.
The crew is having a hard time solving the murder without Jane though so they try to use his help through phone calls to the prison.
Lisbon and Bosco butt heads over Jane going to jail and even though Bosco apologizes, Lisbon refuses to forgive him.
Eventually, Jane manages to get out of jail using his mental skills and some luck. He tracks down the killer in a home where the victim's family has congregated. He reveals a love triangle and affair before outwitting the suspect and getting her to confess to killing the victim. When the police finally find Jane, they take both into custody.
Determined to get Jane out of jail, Lisbon threatens to reveal an incident between Bosco and her that took place a long time ago but that would surely damage his career now.
Jane is freed and all goes back to normal…